Hi,
I studied Clinical. Please check with another doctor who can recognise your challenges better. I have doubt about your ADHD. I think your issues is not related to ADHD. With short explanation you have written, I think it can be some other psychological problems.
Just remember the only one who can help you, is just YOU. You still are so young and have potential to change everything and make a wonderful life for yourself. I know it's very difficult, but along with medicine, have therapy simultaneously as medicine itself can't be effected.
Please don't rely just on medicine as it will just change the symptoms and nothing else. Psychological issues need to be cured from roots.
Do take care!
Next Steps
please find another reliable psychiatrist and therapist as well to help you cure as soon as possible.