You could take the ward hex. Together with the split hex feat (availiable at 10th level) that should work well. Same is true for evil eye.
I definitely second evil eye. It affects them even on a successful save. You can debuff a variety of stats with it. You can extend it with cackle. All good stuff.
Evil eye. No brainier in my opinion.
Another for evil eye. In particular, this gives you an extremely powerful two-round attack.
Round 1 : Evil eye (saves). This will impose a -2 penalty for at least one round, even if the save is made.
Round 2 : Cackle to extend evil eye, Use Quickened Ill Omen (at a -2 save) to impose a further saving throw penalty. Use the Slumber hex as a fight-ender.
Round 1: Standard action Evil Eye saves, move action Cackle.
Actually, Orfamay Quest, it is even better than that since Evil Eye increases to a -4 penalty at 8th level. Evil Eye is a great hex, and 8th level is a great time to take it.
For 4th level spells I guess that Fear and Enervation are both classics though Fear and Confusion overlap a bit. Death Ward is situational but can really save your bacon against undead, a foe the Witch focused on mind-affecting stuff is kind of weak against. Spite could be an interesting defensive spell if combined with Spell Storing armor of some sort (+1 haramaki, armored kilt, silken ceremonial armor, etc) to get a 2 for 1 effect on anybody who hits you.
Once you gain 5th level spells you might consider Summon Monster V since it adds a lot of versatility and summoned monsters can harm stuff which is immune to your many mind-affecting powers.
Evil Eye, nuff said.
8th lvl Evil eye is -4 not -2. Never look back.
charm is also good if you roleplay a lot. I would probably leave fortune out for now if I absolutely wanted both.
You will suffer a lot in a campaign with monsters mostly immune to mind affecting abilities. A lot of powerful spells in the witch spell list is exactly that, mind affecting abilities.
That been said, I advice against disguise hex. hat of disguise is cheap cheap cheap. Charm can be really useful out of combat (so is diplomacy + student of philosophy trait) if there is a lot of roleplaying involved. Keep in mind that charm is also mind affecting hex.
Feats you may want to consider:
1) Split hex/split major hex - as soon as you can qualify for it. A MUST.
2) Improved initiative - going first with a witch if very powerful (like all spellcasters)
3) Accursed hex - almost mandatory in my opinion.
4) Scribe scroll - for a divine/arcane prepared spellcaster with many utility and situational spells is also very powerful. Don't hesitate to seriously consider it if you cant think of anything else or you like the idea to craft.
5) Extra Hex - there is great versatility in hexes, so don't be afraid to take this one either.
Also, check if you like:
1) Ability focus (if your dm is fool enough to let you take this)
2) Improved familiar (great versatility, these little critter use your numbers for his skill checks. Great for delivering touch spells also, scout like no one else, and all sort of shenanigans) check some strong options like the Cacodaemon, Cassisian angel, imp, faerie dragon, lyrakien azata, paracletus, silvanshee. Great great SLA's and out of combat utility. In combat also, some of them.
Since you got almost all the good normal hexes, and you are close to qualify for the major ones, I will mention only them:
1) Ice Tomb - super powerful SoD that targets Fortitude (suck it immune-to-mind-affecting-abilities monsters)
2) Retribution - just read the description. lol
3) Delicious fright - A mind affecting hex also.
4) Agony - nauseated is nothing to laugh at. Not my favourite hex though. Reason is that it allows a save to end the effect every single round.
For 4th lvl spells, you 're heading in a good direction. Both black tentacles and dimension door are powerful. So is confusion. Some others you might want to consider:
Death Ward
Enervation
Locate Creature (very situational, but so useful when you need it)
Ice storm (aoe control, no save)
Divination (out of combat utility)
Phantasmal Killer (strong but dangerous)
Threefold aspect
Solid Fog (control and utility)
Arcane eye (great utility for scouting, but doesnt come that often. You may not need to prepare it everyday though)
That's on top of my head. I hope it helps.
Thanks for all the advice. Im leaning towards charm to try and be more useful out of combat...my question is, what happens when the hex wears off?
Lets say i were to charm a shopkeeper into giving us a small discount. Hex wears off afterwards, what happens?
Ice tomb : Where is the duration for this? Judging from the description im guessing it doesnt work on undead (since undead are immune to paralysis)?
I dont know why people keep recommending improved familiar...the familiar is still super squishy, most of their SLAs/Auras are very weak with low DCs that do not scale well, using a familiar to deliver touch attacks is a terrible idea when it's also your spellbook...there's really not much utility here.
True, super squishy. But here's the deal: Faerie dragon gets improved invisibility. That is very much protection that you might need, specially if a baddy recognizes your familiar as your spellbook. The little guy also casts with sorcerer levels. Which means it can use wands. You've opened up your spell list, and that is awesome. If you want utility there's really nothing better.
Regarding the familiar, the big deal is wand (and possibly scroll) use to increase your spell output. Crafting those wands for half price would help the party afford them. You probably don't have the right feat set up for that though, and a GM so inclined can put a stop to it by severely limiting wealth and downtime.
You might want to take the "Make the GM give us some treasure and stop running all stuff immune to my powers" Hex. Then again, maybe your group enjoys toughing it out.
EDIT: Since your familiar is already a weak spot even if it isn't improved be sure to check out the Stone Familiar item, which you probably can't afford. It allows you to back up the spellbook aspect of the familiar.
One option if your GM will let you is if you've taken any hexes with the Extra Hex feat, retrain the feat into something else and take that hex as the hex you get through levelling.
A lot of spells don't offer saving throws. A wise master also might want to avoid having the familiar use spells which target enemies to begin with since that's more likely to draw attacks on the familiar, which are rarely desirable.
Even the lowly wand of CMW which heals 2d8+3 can help out a lot if use in combination with your healing hex. 4d8+11 is pretty serious healing. If the Summoner puts an Ablative Barrier on the eidolon the healing practically doubles. This makes your familiar great in a support role. In one game I have a wand of Good Hope which my familiar uses in the first round of any combat which looks like it might be tough while my girlfriend's familiar uses a wand of Haste.
Something like a wand of Mirror Image might make your improved familiar a little more survivable than a regular familiar. I'm sure you get the idea by now. It is all predicated on having access to wands though. If you're low on gold and don't have Craft Wands it might be kind of lackluster.
Anyhow, I'm not really trying to push you into Improved Familiar, just covering some of the potential benefits and strategies since you seemed to wonder why people would invest in it. I'd love to give you some hex advice, but if the GM is running mostly "mindless" monsters it seems like an unfortunate game to play a Witch in, especially since you already have somebody focused on summoning (something else Witches can do OK at)
Five rounds seems like plenty for most battles. That said, I wonder if your GM is adding immunity to monsters to avoid your hexes. Slumber in particular sometimes ends fights with disappointing quickness. After a Witch I was playing put a big monster to sleep one time we made a house rule getting rid of the Fort save on Coup de Grace. Slumber seemed more fun after that. If your GM is going to give stuff mysterious immunity otherwise something like that might be a decent compromise (at least IMO)
Having lots of enemies is probably a better plan in general, but it could be possible that the GM wants to use some big monsters but feels discouraged from doing so by Slumber or similar powers. Of course no power is perfect, and a lot of the Witch's stuff is pretty situational.
Demons and aberrations aren't usually immune to mind-affecting stuff though, so it seemed suspicious to me when you said that you'd encountered a couple which were in a single session. It certainly could be legit, but if you already feel like Slumber and Evil Eye aren't useful and the GM is adding immunities to creatures because he doesn't like one or more of your hexes that seems like it could get frustrating. This is why I was thinking that maybe a toned down version which you actually get to use might be better.
Of course I'm not at your games and can't know what's going on for sure. I'm just guessing!