Elhoim
Iron Tower Studio
I'm kinda worried increase by use will become very limiting. Didn't pick any of the alchemy options in the first settlement? GG, you're stuck on alchemy 1 the entire game.
It won't be done in a linear manner. There will be skill books that give you learning points, low-level opportunities to practice your skills, etc. While maxing a skill will require dedication, developing a skill to a decent level will be doable even if you skip half of the options.
Plus failing later checks still give learning points, as was said before.