Tear Me into 3 Pieces to Handle Life

For the next 1 and 1/2 month or so i'll probably become lifeless. Projects, projects, assignments, mid-terms, quizzes, exams!!!
I think I'll go crazy soon. Time's running out and I feel like panicking. And on top of all these, my mom has to squeeze all the life out of me. I know this is very immature or cliched to say (like i'm still a rebellious teenager), but she just doesn't understand me. Sure, she knows my personality and my character and all my bad habits, but she simply doesn't get that I need space to breathe. I need my own time to myself. I cannot help it. I'm selfish. I need time for myself. I need a room to myself where no one enters for a long period of time so that i can do things on my own and spend time with myself to think about things. Sometimes I really feel like suffocating. And my mom just doesn't understand. I wish she could understand. I wish she'd know how difficult this is for me. She makes me help her at times when i need to study. And she always cries silently when she feels helpless without our help in housework. I feel BAD you know, for making her cry. And even though I'm not always the one who makes her cry or upset, I feel RESPONSIBLE for it. Like i'm the one who did make her angry and cry. God, I HATE THIS FEELING!

My relationship with my mom has always been strained. I really love my mom. I do, I really do. But we do not communicate well at all. Sometimes, we're very chummy but most times she just nags at me and we get into quarrels ALOT. It's always cold war with her or her with me. I feel that she treats my elder sis and third sis better than me. She just doesn't realize it. I always feel so left out you know. And great, now i feel like crying. I guess I really need 3 pieces of me. One to handle school, second to handle family, and the last one to just be myself.