@Tangletail Very nice, you seem like you're ready. You have good traits too. I'll be nice and let you take the maximum starting gold for your class.
Can I use them to make potions?
@rush99999 It all depends on how you want to fight. Fighters have versatility and different builds. Barbarians are a little more one note, but no one is better in melee combat.
Adding further. The versatility of fighters is one of their major strengths. Both barbarian and Fighter share the same weapon selection. But fighters take superiority in the armor and shield department. Where the figher really shines is how extremely customizable they are. As they have a feat quite literally every level. You get a bonus Combat feat at level 1, and then a feat every even level. Followed by every character getting a feat at all odd levels.
Starting at level 1, you get two feats. One feat of any choice, and one combat feat (the bonus). As a human you would have access to three. Two feats of any choice, and one combat feat.
The fighters in pathfinder are well known for their insane battle dance at early levels. And becoming much more nightmarish later on with additional options. From walking into a room full of fourteen gobos and absolutely clearing it out in a single turn. To being charismatic power houses with the feat Cornugan Smash, and intimidating people as they tear their friends in half. And lets not forget mounted combat.
Barbarians aren't as versatile. But they are fast power houses. Unlike 5e, they can rage whenever they want, and maintain it for however long they have rounds of rage. Their rage does significantly more in pathfinder, but not at the first level. Similar to fighter, you gain a new rage power at every even level of your selection. Which gets pretty insane once you get a few,
d20pfsrd.com/classes/core-classes/bar…. The barbarians also have much better staying power at the get go from fighters. While they can't hit heavy armor and tower shields like the fighters, they tend to have much more HP, can't be made flat footed at level 2 (lose dex bonus to AC), get natural damage reduction
Don't forget, you can take two traits, which must be from different categories. If you take a flaw, it gives you a third trait. But keep in mind that flaws tend to get be nasty.