How do I stop missing my ex?

Perhaps you could pursue hobbies or interests that you are passionate about? How about doing some volunteer work to keep your mind occupied?

by making your self bussy meet people enjoye life and try to make your self forget about him ........

I just spent more time with my friends and immerse myself doing the activities I've never done before.

Do things that distract him/her from your thought, like going out with friends, studying, working out

DON'T stalk him on social media. Try looking at new people who could be your potential partners to distract yourself from your ex. Or simply, just talk with your friend and ask for advice.

They are different step : first step, cry for her a lot : remember all the good moments, read all the letters etc. Once you feel you cried enought, put everything on a box to try to have the least stimuli from her. Don't stalke her on facebook. Each time you think about her think about the bad things but not too much, the aim is not to hate her just to remind you she is just a human.

Occupy your mind with your happiness, stay focused on what you want to become in life that will blow the minds of people.

Realise there's a reason they're your "ex". Life gives you moments, memories and experiences. If we spend too long looking back and feeling sad, we can miss the moments just in front of us

It is not possible to stop missing your ex, especially, if you still love him. You cannot unlove the person easily. If only I know how to, I am very much willing to share it to you. To avoid thinking him too much, focus on your work, make yourself busy to the things that can make you happy. Why, doing so can help you lessen the feeling of missing him. Do it regurlarly as much as possible, until the feelings disappear. By then, you will realize that you can be happy without your ex. Enjoy life! Dont lock yourself up to the things that can make you or help you grow just for that unworthy person.

To stop missing your ex, the easiest thing to do is take a break from them. You could also point out their flaws, so that you don't like them anymore. Getting over your ex takes time, and I hope you do soon! There is going to be someone who loves you unconditionally. You'll find them someday.