How to recover from a bad relationship?

I would suggest that you should try involving youself in something you like, something that can divert you from your thoughts. When we dwell on the same thoughts again and again we find ourselves more drawn in our sorrow. If you indulge in something you like, something that keeps your thoughts away, regularly, after some time, you'll find yourself recovering from the bad relationship. 

I am so sorry that you are going through this as I know how it feels when you can’t get someone off your mind. What has worked for me in the past is to focus my energy elsewhere. You have to remember the things in life that you found joy in before. Surround yourself with people that you can confide in, people that will not judge you and will be there to distract you, people that you can have fun with. Think of something that you can do to help others and it will make you feel better about yourself. Join a fitness club. Some people will as they say, “Get a new attitude.” Work on a new and better you. Try a new hair style or a different style of clothing, anything to show the world that you are not going to let this get the best of you. Remember, the relationship that you had does not define you. Be strong! Be happy! Be blessed!

sac,  You won't ever forget what happened.  As time goes on, it will hurt less and less, but you never really forget.  Time is what is going to heal you.  Stay away from the places the two of you used to go to.  Get rid of pictures, and anything that reminds you of that person.  Just keep in mind that time heals all wounds, and wounds all heels.  Best of everything to you.

Anna Sparky's Mom

Stay busy. Join groups like a hiking club or book group (whatever your hobbies are) Get physical exercise. This is important because when you lay down to go to sleep you want to fall asleep quickly, not lie there thinking.

Try reading It's Called A Breakup Because It's Broken . It will definitely bring clarity to your situation. Good luck.

Choose Happiness.

If there was a non-medical answer to that you would have the makings of a very successful company. Sorry, time is your only cure, meanwhile try as hard as you can to make yourself busy, but please don't run into the arms of someone else to ease the pain

I agree with both of the two main things that have been said. 1) Time heals all wounds. You will feel better eventually. I know, from personal experience, that that's no help or consolation to you now. I know. But it needs to be said. 2) Distract yourself. Do things that you enjoy, or enjoyed before you felt this way. You don't have to enjoy them straight away, or enjoy them as much as you did before now, but you should keep doing them. If you keep at it, you will eventually find the pain gets less and less. At the very least, they can distract you temporarily. I particularly found spending time with people I care about (and who are unrelated to the person you were in a relationship with) is so important at this time. You don't necessarily have to talk about what you're going through or even tell them (thought that's good too), just spending time with people helps stop you from completely walling yourself up inside your own thoughts and emotions. And it reminds you that there are people in the world who care about you. I hope you feel better soon!