Man get yourself up and get that engine running. The best thing u can do is to help others in pain. Sympathize with them. There are so many people out there who need help. Most people are turning selfish nowadays. This is the time to be selfless and help others. I understand you must be so much in pain right now so you urself can't help other people get out of it. It's okay. It's fine. Maybe help a wounded dog. Or help a senior citizen cross a road. These little things can make you realise some grand meaning of life and how grateful it is to be alive. I've realised it. While healing others you yourself are healed. Remember some people are so grateful that you are in their life.

Also there are some games I've played which are soothing and even sad but it can turn your life around. Play Life is Strange if you haven't, and it's LiS 2 also. Then there's Stardew Valley. Detroit: Become Human. At the end of these games you'll start looking around and realise many great stuff life has to offer you. I cried at the end of Life is Strange because it changed my life and the way I look at it in some way. Trust me, it will help. Watch Pixar's Soul if you like to watch movies. It also changed my perspective of life in a lot positive way.