Get a new hobby, learn a new skill or get into some group activities if some friendship got fragile after the breakup. After you busy yourself up you will be clear minded to see your situation properly and face your problems less emotionally and more rationally.
become a “yes man” (or woman). Friends or coworkers invite you to an event? Say yes! Even if it’s out of your comfort zone and you would much rather stay on your couch watching Netflix under a blanket. You will thank yourself later for getting out and having the experience. It’s tough, and anxiety may occur but you’ll be proud of yourself for going about your life and enjoying an experience with other people. You may even make some new friends, and will definitely improve your relationship with current ones.