So, I had a few questions related to the subject:
1. What does Wealth mean, referring to the Character Advancement Table (I'm currently sitting at 3K, will hit 6K)?
2. I'm not sure I know all that happens when you level up. I know you get more HP (although I'm not sure how it works), skill points (not sure how that works either, :P), additional feats or bumps to an ability score when you hit those milestones, and either an additional HP or SP for your favored class bonus (or whatever your race may provide). I also know that, as long as you gain a level in that specific class, gain stuff like a higher BAB, Saves, etc. If there is anything I missed or got wrong, please let me know. In general, I know more about the class-related things than the 'every character gets this' stuff.
3. Since this is specifically my Alchemist hitting Lvl4, I know I get an AS bump and a Discovery, among a BAB, Fort, and Ref increase and more Extracts. The AS goes straight to Int, but I'm not sure which Discovery or Extracts to pick. For the Discovery, I was originally going to pick Infusion, but since my Archetype is Chirurgeon, I have Infused Curative as a bonus feat (all my cure extracts are treated as if I had Infusion). Since that seemed to be the only real reason to get Infusion, and I can't get the Breath Weapon until Lvl6 I now have no idea what I want for a Discovery: I'm stuck between different bomb types and better positioning (having the bombs burst in a line, cone, larger splash area, work underwater). As for Extracts, I know I'll get Fox's Cunning, Cat's Grace, and Cure Moderate. Not sure on my other two 2nd Level, or my additional 1st Level. Any advice would be appreciated.
4. In the same spirit as some of my dumb friends saying 'There's no life after 30', I've been told that there is nothing after Lvl12 when it comes to PFS. How true is this statement?
1. Wealth is the approximate amount of gold(in what your character can effectively use) you should have on your character. Note the proper way to do this is to gain the gold beforehand. Upon hitting level 2 you should have 1,000 gp and thereafter begin gaining gold towards 3,000 gp at 3rd level. A Bad GM has the gold jump rapidly from 1,000 to 3,000 upon leveling up.
2. To determine the HP you gain, you roll your Hit Dice for your class such as d10 for Fighters then add your Constitution Modifier to the roll. Skill Points are determined by the class again. A Fighter for instance gains 2+Int Modifier.
3. Infusion is amazing for buffing your allies which is one of the Alchemist strong points.
4. PFS ends at level 12. Most folks retire their character at this point. High Level home games are hard to come by. So build characters who are effective 1-12.