You can’t change the past. So there’s no point in continuing to rehash it in your mind.
Yes, there is much you can learn from the past. Once you’ve learned what there is to learn, move quickly on.
Though you can’t change the past, you can choose the way you feel about it. Your best choice is to always feel thankful that your past has brought you to where you are.
Where you are now is a place and time filled with great possibilities. Choose the most positive and meaningful of those possibilities, and go with them.
Go into the future with a sincere sense of gratitude and purposeful intention. Go into the future informed and inspired by the past, but not burdened by it.
The past has been good to you because it has given you the opportunity of now. Wisely use that opportunity and make the future even better. ~ Ralph Marston