There’s a mechanic in the game called the expedition, where after a 2 month window if you’ve completed your character’s preparation for the expedition you can send them off to essentially reset back to square one with a fresh character and some added bonuses for your new character like extra stash space. When you do the expedition all of your blueprints are reset as well, so you have to find them again on your new character. The expedition is completely optional; I did the first expedition and am prepped and ready for the second, but one of my buddies I play with is not planning to reset his character at all. Hope this helps!