I'm very interested to hear your stories about what you do when your relationship with your girlfriend ends, what you do in your free time from that relationship.
I realize that this is really unexpected advice. But really, all recommendations to start new things, to do good, to pursue a career, to get a cat, a lover, fleas, are just ways to distract yourself. For example, I decided for myself that for the next year I will not start a new relationship, I would rather have fun through sex cam random on the site 18fu.com/chat-ruletka.html. Just there no one demands anything from you, you don't have to give flowers or take care of someone. Everything is simple and straightforward.
Go to therapy. No, really. Go to a psychologist, tell him everything, cry, be angry, find a connection with mom, dad, and what grandma (great-grandma) experienced in the war.