Here's what I think, Eden, and I ain't gonna sugar-coat it:

That stuff in your head all feels very real to you, but it isn't real at all. What you perceive to be angels / demons are no more than disordered thoughts that are running AND ruining your life.

Your life doesn't have to be this way. You need to see the psychiatrist, because he / she can help you. Even though your disordered thoughts are going to tell you that is worst thing you could possibly do, unfortunately it is the only thing that will help you get your life back.

Your life will likely stay the way it is now until you get yourself (or are forced to get) psychiatric help.

Go see the psychiatrist.
Tell him / her what's going on.
Get your life back.