How to not miss someone that you aren't with anymore.

Remember what you had is in the past and it was good then. Be thankful for what happened then.

Now is the present. You are not together for a reason, but the reality is that neither of you is the same person as before. Can’t go back to the past.

very easy to do so. You have more struggle if you fight with the memories that keeps coming. Best thing to do when the thoughts come is to admit them, and let them slip.

Keep busy.

"How can you stop the rain from falling down?" - Bee Gees

1. Think of everything he/she did that bugged you. Really. Get down in that.
2. When you start thinking of anything you liked about him/her, see #1.
3. He/she discarded you.
4. See #1.