My mom and i dont get along? (sorry its long but plz read)?

Hmm if you really don't want the stuff, ask her if you could donate it to charity. Throwing things away unused could be pretty wasteful. If you don't get along you should talk about it. Get your dad (if you get along or someone else) to help you in your conversation sort of like a referee so things don't get out of hand. Hope it works out :)