Do I have a mood disorder?

It sounds like depression not a mood disorder. I know you probably hear it all the time but that is typical teenager mood swings exept in your case it's going from depression to being happy rather than being sad to happy. Your the only one who can know if something is wrong or not. Not me. Go to a doctor. Maybe you have bipolar? I really doubt it but still. Try looking up addictive personality disorder aswell. Maybe you have that? Once again I doubht that you do but just look it up anyway. Suicidal thoughts are seirious. And feeling of not being loved by anyone. I think you need something. Please darling, a proper therapist is the best thing out there! I swear. Please, tell someone. Wheather you live or not is in your hands.