I'd say focus on your kid. That's what I did when my daughter's mother and I split. It helped me straighten myself out right quick. I was dealing with a lot at the time, and seeing as a child is involved, I didn't want it to mess her up. I'm not saying it was easy, but you can improve your life and outlook by channeling your energies in a positive way through focusing on your children, helping them through this. Don't talk bad about the mother, especially. I could offer plenty of advice, but nobody wants to hear all that. Good luck, keep your chin up. Stories like these can have a better ending than you might think.