How to control myself not to disturb my ex-boyfriend, not to think about him, not to send him a text message, and let it go completely? He bothers me and my heart aches.

You said that if you want to control not to disturb him, you should understand what you really should care about and grasp. If you want to get out completely, it's up to you. But there are some things I want to tell you, hoping to help you. You shouldn't let yourself suffer for an impossible relationship. The best way to get out of a failed relationship is to enter another relationship, but before that, you must correct your mentality. Many things are unnecessary, and you don't need to care anymore. You can't let go largely because you have hinted to yourself that you can't let go. You should be more sunny, tell yourself that something better will happen and forget it slowly. Although you can't forget them completely, it's also the best way for you to get out of trouble. If you are so infatuated with others, you won't say you are infatuated, only that you are stupid. Don't be silly. A high posture can make you live better in the sun. Without him, your life is equally wonderful, and you will not be worse than others. Come on, face a new life.