How can i deal with this?

When i was 14, 2 boys beat me up for my bike.... i didnt know them that well but i knew that they used to go to my school. and one of them i knew where he lived but he doesnt live there anymore... and i am just dieing for revenge on them both.... because im 16 now and i have gotten bigger and have kickboxing experience and im much tougher. but he is gone now and the fight just keeps comeing back to me and i burst in anger from it....... i was scared to leave the house but i have recovered from that. my question is, how can i get over this i really want to get him so badly but i cant now. help please ):