I've never been in MH, so I can't tell you what it's like, but I do know that it's not forever and you really need help. It sounds like all these things are destroying your life. Now, I wouldn't be real focused on being "normal", rather, I would be focused on not feeling suicidal and being able function in my day-to-day tasks.

I'm not much into spirits and the paranormal... but I would be extremely wary of interacting with any entity that encourages you to hang yourself. He sounds like a malevolent trickster to me, and they're dangerous because they do tell you the truth sometimes. When you have gotten to where you feel better, perhaps you should contact a paranormal society to help you deal with whatever it is that is harassing you.