It's YOUR life, Ginny. Have you been honest with your mum about how you feel? You may have to be brave and let her know.
Do they have council houses where you are? Not sure how it works over there. If so you may want to consider putting your name down on the waiting list, with your benefits you may even get the rent covered.

My mum uses me for my money I get more money on my benefits than her

But mum keeps saying I can’t she needs my money my benefits cause she’d be skint without them
Obviously I was lying about being a millionaire sorry about that !!