Red Dead Redemption 2 - For a Few Redemptions More

My current nagging issue…

As I roam around, killing and skinning animals among other things, I get notified that I can’t get everything because I don’t have room. Confused, I looked at my inventory… err, satchel… and it didn’t seem full? But apparently 10 is the limit for turkey feathers or something.

How to decide what stuff to get rid of and what to keep? The stuff I’m crafting around the campfire? And do I sell it for cash or is there some way to donate stuff to my gang’s camp? Seemed like there was something about that but when at the camp it was not obvious how that works.

Bottom line, whatever I do with the bulk of the stuff… what is the stuff that I should be keeping for myself?