I'm too scared for school

I've always had anxiety and depression, but this year has to be the worst year of my life. i've missed weeks of school because just the thought of it would give me panic attacks, and sometimes, when i tried to go to school, i would freak out before i even got to the bus stop. I know the whole thing is very irrational, and ive tried to overcome it, but so far i haven't had much luck. my anxiety is out of control, and i hate it. the only thing i have to hold on to, is that next year i'm moving to a different school, and it will be my chance for a fresh start. I'm very excited, and have signed up for classes I would have been to scared to take before. just thinking about next year makes me happier. but when it comes to the present, i'ma wreck, and i can't seem to save myself.