How do I deal with the uptight, straightedge people at school?

Hey guys so at my high school a lot of people have been avoiding me because a lot of them or intimidated, or scared. That's what I hear, anyway. This is basically because it's gotten out that I smoke, "do drugs" (I did them like over a year ago...not anymore), skip a lot and fail consequently, and have problems at home. Oh yeah, and that apparently I'm going to alternative school "to deal with drugs and family life problems". The thing is, my life HAS been getting hectic with these things but I am getting help with counselors and I'm NOT a different person. I feel really sad lately because the best thing that would help me is people embracing me more... Shunning me is making it worse. I don't know what to do, deny what is going on and lie, or say it's true and scare people off. I don't know whether to suppress it all or make people feel bad for me/ scared of me. Some of my friends have stopped replying to my texts, have reported me to the school about drugs, and most people have stopped talking to me. I might not be going to school next year because I might be going to the alt school, but until then I don't know what to do. I only have like 2 everyday GOOD friends at school, and a few other people who don't yet know about everything. I'mgenuinelyy a cool person, but I have problems making friends (I can come off as intimidating, my personality is pretty intense with all the things goin on). How do I keep the people at school at ease, or accept me more? How do I not further go into "outcast druggie and problem girl" label? Thanks guys.