My little brother is autistic and he makes life for my family hard

I wish I was rich enough to move out of the family house but I’m not. I come home from work or college and my little brother messes my room everyday so I come home to a messy room. He urinates in the shower and on the floor when he doesn’t get his way so we constantly have to clean the bathroom. He is always screaming and making noise for me sometimes he is too much for me. Don’t get me wrong I deeply love my brother no matter what but that doesn’t change the fact that he is annoying and makes my life difficult sometimes. These small things that are done all the time all add up. I can’t wait to have the time during the summer to think of ways that I can protect my room from being ruined.