Hey man, I feel you a couple years ago I found myself on the verge of suicide and almost went insane in the process.
Do you know how to meditate? The first meditation I learned (was in the suicide prevention ward btw) involves a golden light entering your body and black energy leaving it.
I want you to sit down somewhere you will not he disturbed and breath deeply in and while you breathe in imagine a golden light entering your body and having it envelop your body.
And when you breath out let it all out as slowly as you can imagine a black negative energy leaving your body if you keep this up for a few days you will surely start to feel better