If you just recently broke up with your boy friend and realized that you still love him and want to get him back, then it's very much doable.
90% of breakups can be easily reversed, and guys are easier to entice back to a relationship than women. Most guys have a hard time letting go of things in their life especially if it's a woman. So it will be very easy for you to get your guy back.
You just have to follow certain tactics. First you must once again regain your self-confidence. You must let him see that you're already recovering from the situation. Avoid contact for some time. This will allow him to miss you and realize what an idiot he's been for letting you go.
You must never try to get him back by begging. Guys hate that in a girl. Once that happens you'll be pushing him farther away. Don't cry, crawl, threaten suicide or get violent. Control your self and show a sense of confidence and calm even if it's breaking your heart. He will be intrigued with such character and on some instances would realize what he is losing.
The book below contains a complete game plan, an entire strategy to follow to make you ex realize what he's missing by not having you on his side.
However, you must also decide if you really still want to be with him.
If you've decided to get your ex back then listen carefully.