I would try to get at least a 12 in intelligence. Then you have a comfortable amount of skill points to pick up bluff and diplomacy. That alter self ability through many forms is REALLY nice for being a tricky deceiving shapeshifter, and can certainly be fun for roleplaying.
There are quite a few ways to build a good oracle. As you are a halfling, I'm assuming the front line combatant oracle isn't that interesting, in which case I would focus on buff/debuff spells and other ways to support.
Like most Oracle mysteries, most of the revelations don't seem that useful. Cloak of darkness is not as good as regular armor, the damage dealing ones are a bit underwhelming. Although Wings of Darkness look great for getting and staying out of melee range. I personally like Many Forms, and if you get to 7th level Gift of Madness seems like a really fun debuff.
I heavily encourage reading one of the Oracle Guides in Guide to Guides, because they analyze this stuff more carefully.
I definitely second reading a guide.
Other than that, I respectfully disagree with nigh everything Mage Killer said. :P
Cloak of shadows is wonderful. It has no max DEX for AC, no armor check penalty (even increases your stealth score) and scales up higher than Full Plate. Make sure to get magic vestment to buff it with.
I don't see the appeal of gift of madness. You'd've had a much more reliable single target will save spell in hold person since level four, and in three levels you'd get mass command or forbid action, which are multi target as well as more reliable than confusion.
And oddly, I do like one of the damage dealing revelations. Touch of the void isn't dependent on strength for damage, and fatigues. That's nastier then most first level spells, and you'd get it seven or eight times a day at level one. I'd probably make it my level one revelation, and take weapon finesse as my level one feat. (It'll be useful for touch spells later.)
Out of curiosity, what curse are you thinking?