For those of you who have been diagnosed with something, what kind of doctor would I have to go to to figure things out? I think I've had depression for quite a while like 6 ish years or so. I barely ever sleep good I cant seem to eat enough or not too much, I cant ever focus and I'm  either not feeling much or breaking down crying over nothing for no reason constantly and it's not my hormonal cycle because it's always constant for weeks on end.  I also have zero motivation to do anything constantly and all I seem to be able to handle the idea of doing is laying down staring at the wall or just sleeping which I cant even do correctly.  Everything just always feels like too much.  I try to talk to my parents but they just say you dont have it you're fine you're just overthinking and overreacting.  Anyways tangent over I'm almost 18 and when I am I want to figure out things.  Should I go to a medical doctor? A therapist?  A psychologist? Where do I go and what should I do?