What have you done today to put a smile on someone's face?
Time with life can define us. We can let it guide our path. Right now, you sit and think about how someone hurt you. How about turning that around? Take that experience and face it.
In reality, you are still breathing and walking. You still have a heart beat and you will continue to do so until life otherwise decides differently.
Why hold that anger, why let it control you. You have an amazing soul that captures many and you hold it back due to someone doing something out of your control? Stop that and take the experience for what it is! Life.
Take your life, laugh and poke fun at it. You may just simply put a smile on other's faces with acceptance and perhaps, just a tiny chance they laugh at their misfortunes. This path will take you down a better place. It's called "confidence". You WILL start to believe in yourself, you will start letting go when you see how small that anger has in your heart. You will change.
Happiness is seeing the good in yourself and believing.