Really go and get some professional help, and if you've tried try again. If you have someone you trust that can accompany you to the doctors etc, I would recommend it.
My experience of seeking help for mental health issues has been generally good, I've been pretty upfront about drug and alcohol issues and have rarely felt it was a problem. Yes I've had a few useless doctors or ones that I said some truly hurtful things but in the main they have been compassionate and helpful.
I self admitted a while back, in truth Mrs A drove me to A&E such was the state I was in, I got a place in a local secure unit and wasn't sectioned, they really have no need if your staying there. One girl did get sectioned as she insisted she was leaving, it was justified as she was not safe to be on the outside.
Maybe I was lucky, the unit I was in was for drug detox and mental health, yep I saw a few people taken to the ground and injected but it was done in a respectful and careful manner and we had an independent advocate in twice a week if we wanted to take issue with the place.
The nurses (mainly African imigrants for reasons I don't know....and no I don't just mean they were black) were really good people and I was treated with respect and cared for as well as feeling I was in a safe place for a bit.
One day a couple of the nurses got a few of us guys in the main TV lounge, a guy who was coming of B had a guitar and they had a few percussion instruments and we sang redemption songs by Bod Marley together, that one moment probably did more for me in the long run than another.
Get some help, if I hadn't I doubt I would be around now, in fact I know I wouldn't be. If I had survived I would have lost all those I loved, they were already nothing more than images on the other side of the glass.
Things keep changing you will not feel as you do now forever, it won't ever be perfect but you can improve things.....with help.
PM me any time for what I don't know but I'd hate to think you felt alone because your not