I'm so pissed. Can someone help?

My mom is so damn annoying. She always yells at me for crap that's not even my fault and she kicked my brother out so many times and life was so good without him. And she keeps letting him back in. And everytime, she gives me the same old dried up answer ' oh I'm not letting him back in this time' YA RIGHT! Now he's back and he makes me want to punch him in his ugly face. My mom won't even listen to me. She always takes his side and says ' oh well you have issues too' as if I don't know that already! Duh!!!! And I got so upset that I went to my room and cried for an hour and searched the web for ways to make my mom feel guilty and sorry and how to get my friggin' 18 year old grown *** brother to leave me alone and to make his life miserable without getting caught. And don't give me some stupid answer like ' don't be so upset' or ' be glad you have a mom' if you were in my situation, I bet you a million bucks you would have pulled all you hair out by now and also, I'm not crazy and I dont need rehab. The way I explained my problem, it seems so, but I'm just a normal teenager who's really pissed. Please help. I'm so PISSED right now!!!!!!!!