I Hate My Brother

So my brother is one year older than me and he is a clean freak. I don't just mean like clean every once in a while i mean he spends every single saturday cleaning!!!!!!!! We have to share a bathroom and he thinks we should switch off cleaning it every saturday but when i asked my parents they said we are not doing that he will still make me clean the bathroom and he will literaly fight my parents because he thinks he has a "rite" in the house to say what he believes and it just makes my mom get really mad and then he will just disobey her and get this he will always spend like 30 minutes in the shower and then spend like 40 minutes just putting on acne cleansers, lotion, brushing his teeth, brushing his hair. After that he will get his clothes on and then go back in the bathroom and put toilet paper around his head and put on more acne crap!!!!!!!!!! He makes my mom buy sooooooo much acne stuff and acne stuff is really expensive!!!! He gets up at 5:30 in the morning for school he spends like 50 min. eating scrambled eggs, orange juice, and sausage...He makes a massave amount off eggs and sausage and he makes it himself so with all this going on we have to leave at 7:00 for school and because of him we end up leaving at 7:20!!!!!!!!!!! You have no idea how many times I have looked at buying a shed because I am only 13, and I need away from him!!!!!!!!! I try to stick up for myself but he threatens me for the time he walked in on my friend and i looking at a **** website and he thinks i was watching it too but i went to the bathroom and when I came out my friend was looking up **** crap and he thinks I was watching it to but i was trying to make my friend turn it off and when my brother walked in he had the wrong idea so what should i do to get this **** thing out and every time i tell him the truth he says he knew what i saw and he will tell my parents if i disobey him :(
HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!