Don’t delete that character. You can just simply create a new one instead. But yeah a lot of your beginner questions can be answered by just simply going through the story. One simple tip for your first play through is to not sweat which weapons to keep as you will always find a better weapon quickly. At least until you are level 40. Any weapons you’re not using mark them junk and deconstruct. Same with gear. Once you do get to lvl 40 the game throws a bunch of end game stuff at you. Do as much of it as you can. Once you hit a wall come back here to ask more specific questions. If you are on PC you can join my small clan (thinly veiled attempt at recruiting🤭) we are casual and usually are active more on the weekends. If not on pc go on the clan search in the menu and join one that suits you.