I read your post and wanted to offer this website to you. It sounds to me like you are doing your best coping with the stresses of school and life. Good for you that school is so important, but maybe you need to slow down a little and not take such a full load, I remember how overwhelming that could feel. There is some interesting information in the article I attached. Good Luck.

www.connectwithkids.com/tipsheet/1999/32_dec08/pressure.html