You have to consistently remind yourself that's in the past. It may not be resolved but it's gone and long over with. Remember the ones who love you, and, for goodness sake, keep them in your life. Stay in the present and be there for your loved ones, whether you have 3 people in your life or 100.
I know it's hard to think that bullies may have had problems - they never seem to have a soul at all, but consider their home life at the time of bullying - they might have had it tougher than you. Not saying it's an excuse to bully, but could explain why they are acting out due to someone else and not you necessarily.
Still I hated my school years and wish I could have done or said something about it. It was hard being in school with no friends or relatives like siblings or cousins to support me. How I got through it without considering suicide, I'll never know. It still sticks with me. In fact today I remembered those days and felt an insane mix of anger, frustration, resentment, jealousy, hurt and helplessness.