When you and your boyfriend broke up did you feel this way? And when and how did you feel better?

I know its for the best that we finally split after 3 years and it was definitely for the best. I feel like a loser, i havent talked to my friends much since we got together because of him being jealous and because i have 2 children. I still talk to a few people but its going to be hard for me to live alone with out getting depressed. What can i tell myself or do to make me feel better?When you and your boyfriend broke up did you feel this way? And when and how did you feel better?
I know it's hard and sometimes it feels like it'll never get better. But it does. It's different for everyone. Don't dwell on the fact your not together just think of your two wonderful children and how it was for the better.