Hi Allison,
I'm sorry to hear that you are having such a rough time in life. I wish there was more that we could do for you here, but it sounds like you need to find someone who can do more for you than just listen.
You are young, in a destructive relationship, have health problems, and don't have support at home- that is no doubt an extremely difficult place to be. Can you contact a counselor at school and tell him/her what all is going on? This is too much stress for you, and we aren't professionally trained to help you here. We are glad to support you and listen, but we can't tell you what to do or get you real, practical help. Keep posting and venting here, but please don't rely on us as your only help!! Try finding someone- a friend's parent, a teacher, a counselor- to help you! You can do it, and you are worthy of help. Please let us know what you come up with.
-CT