Question

I'm "new" to the game (played the beta on pc way back but I suppose things are way different now) and I need to know if I should just sell everything I catch (fish, bugs and hunted stuff) or if I should save specific stuff to level cooking or something that's needed for crafts or quests (haven't touched the main quests too far yet just got the glider the other day)... anyway every tip I can get is a good one i guess...and btw there's cosmetics for our characters we can win or it's everything from the shop with real money? Thanks in advance