Angela, my first thought is that the vice-principal has absolutely no idea of what your life is really like, assuming you are telling what is really happening at home. (And I have no reason to not think otherwise.)

No wonder you are feeling depressed! Is there a counselor at your school who you can trust? You sure could use someone to get help from in real life, too.

When you get to be 18, then (I assume you're from the U.S. or it's this way other places, too) you are legally able to make your own doctor's appointments and to get help. I suggest, then, you see what clinics might be available, if you don't have much money to spend of your own.

Meanwhile, and I know this behavior won't be easy, try to do the best you can and pull up my your grades, so you can graduate, get a job, and get the heck away from home.

We are here to support you with advice and even friendship. We do care.