Hi Meg...
I don't think we've "met" before, but it's a pleasure to "meet" you. I have a hard time reading long threads for the first time, so I'm sorry if I'm not totally up to date.

It sounds like you do have an awful lot going on right now: worrying about your b. mother and father, medical issues, and school. I'm sorry that your anxiety is making you so uncomfortable.
BTW, I smoke pot occasionally & it does help anxiety. I also use it for medical reasons, too. It's "de-criminalized" in my state- no legal scripts. From what I hear, pot isn't physically addicted, but can be psychologically.

Have you ever been taught anything like breathing techniques or guided imagery as a way to help manage your anxiety? It sometimes helps me- the other times I need extra xanax.

I hope things start to look up for you soon. Try to focus on school for now & try to let some of the other stressors fade into the background.

Kay