A few comments.
One poster recommended contacting Dr. Frank Gerbode. Feel free to do that. Dr. Gerbode hasn't practiced, as far as I know, for a number of years. He retired to write, play music, be with his family and enjoy the fruits of his labor. I don't think he makes exceptions to his retirement, but there is no harm in asking. Dr. Gerbode recorded his views in the book "Beyond Psychology: An Introduction to Metapsychology", as well as numerous essays and articles available through the
http://www.tir.org website. I'm guessing that if you're good with a search engine, you can find most everything he's written.
No metapsychology practitioner would tell you to stop your medical treatment. Once you begin a relationship with a doctor, you are in that doctor's care. Anyone who comes between you and your doctor should be regarded with suspicion. That being said, if your doctor thinks methods practiced in metapsychology would be appropriate and wouldn't interfere with his treatment plan, I'm sure any would offer any help they thought they were truly capable of offering. Some might decline if they felt they couldn't help.
Having terminated your own treatment, you are in interesting territory. Many people here have suggested Cognitive Behavioral Therapy. I'm sure many have had remarkable results from it. Research it online. I think you will find that it can be understood by a layman with a little work. I would also look into Rational Emotive Behavioral Therapy, which is similar in many respects. There was a group in Florida for many years that conducted scientific research comparing different types of address for symptoms of "PTSD" (Post Traumatic Stress Disorder), looking for what they termed "the active ingredient". Traumatic Incident Reduction was one of the modalities they investigated, and it was found to be very effective, alongside a few others. I believe that study is available on the TIR website. Florida state, I think, did the research, while they were offering a "traumatology" specialization that they have since ceased to offer.
All of this is academic, though, and if you are presently in distress, talk to someone you trust. Anyone you trust. It may not make the distress disappear after they are gone, but it can help right now, and sometimes right now is very important.

Definitely get some rest, eat some good, healthy food, avoid psychoactive substances that are not prescribed for you, and focus on the here and now. Many things could have been, or might be in the future, but the here and now is pretty certain! Ground yourself in it.
You've received a lot of advice. Consider it, consider the sources. Ultimately, you'll make the decision of where to go for help.
I would definitely recommend that you continue to post. Each of us is here for different reasons, with different opinions, but all of us are pulling for you. Ask questions, state your feelings, share your thoughts. There will be some dickheads who attack you. Ignore them. Thank you for having the courage to share what you have. Many of us have been through similar types of situations, believe it or not. Even if we can't make everything okay, it can help to understand you are amongst people who can understand and listen.
I'm all ears.