Forget who hurt you yesterday, but don't forget those who love you everyday. Forget the past that makes you cry and focus on the present that makes you smile. Forget the pain, but never the lessons you gained.
Everybody gets hurt. We don't always have a the power to change that. But we can on how badly it hurts us, how it changes us as a person.
Embrace the pain they have brought you, and let it hurt you. Grieve. Then, forgive them by that standard -- recognize what they did to you, and forgive them for that vivid pain it brought you. Don't be afraid of letting yourself feel pain -- it's completely normal and okay. Forgive them in your heart, and show them grace and love through acts of kindness. To stop thinking about them within the framework of the pain they brought you is a change that happens from the inside out and outside in.
We don't have to forget, we just have to learn how to live and deal with the pain, and overall forgive everything. Improve yourself, but never change. Be someone better, but stay as yourself.
Face the pain and hurt. Don't shut out the pain they've caused you because when you do that then you're not really releasing anything. But the best thing you can do is write how you feel. Over time it will just be a feeling and a memory. It won't go away in a day but it does take time