Your future lies ahead of you and not behind you.
Focus on the future and don't look back.
In order to "move on" one has to be willing to "let go".
Depending on what it is; you may have to do a private ritual.
Some people write things down, grab photos, or whatever; say a few words and toss it into the fire announcing out loud that they are through dwelling on it.
Learning to control one's thoughts and focus on what (you) want is something each of us has to practice on a daily basis.
It's easier to create a new memory than to erase an old one. Therefore create a list of new goals and dreams then go about achieving them.
Don't let your history keep you from your destiny.
If you want something different (you) have to do something different! Sometimes it means cutting "toxic people" out of your life or relocating. Visualize and affirm whatever it is you want.
Every ending is a new beginning!