The best way to not feel hopeless is to get up and do something. Don’t wait for good things to happen to you. If you go out and make some good things happen, you will fill the world with hope, you will fill yourself with hope.
I think writing really helps you heal yourself. I think if you write long enough, you will be a healthy person. That is, if you write what you need to write, as opposed to what will make money, or what will make fame.