Life is too important and too brief to spend your days being bitter and trying to get even. Evening out the score is a waste of time, and will poison your life. Spending your days hatching plans to get back at that someone that did you wrong will result in a negative unproductive day.
Concentrate on the positive and what you want to accomplish. Move around the bad, find a new path to good. Change your mindset and think about what you want in life for yourself. In the end nothing is ever achieved with hate and jealousy. Keep yourself moving towards achieving happiness. Don’t get even, get even better.