I'm miserable and feel bad about my life
How else do you feel?
Like shit, like I want to hang myself
I am sorry.  Sometimes life can be hard but suicide is not a good thing at all.
It's true, but I can't understand how some people who feel this way just keep it going on with life.
You don't have to be happy all the time, life is hard. So you can feel miserable sometimes when things are going wrong. You just have to remember that it can get better.