It takes time to heal, especially in circumstances like yours.
This is a true test of your self-esteem. Time to dig deep and believe in yourself.
I know it sounds strange, but you can find better than this girl. Today’s pain is tomorrow’s gain. If you choose to start believing in yourself, you can attract an excellent partner whom you really cherish and trust.
I’d say take a break from relationships and try to enjoy time alone. This will be tough because you are still obsessing. If you can somehow gradually calm your mind down…don’t expect to be happy too soon. Patience is the key.
I feel for you because I am an obsessor extraordinaire. Strong emotions seem to control us as they negate our self-talk. Self talk that sounds like this “I’m such a loser. Why did she do that to me? How could he? I’m never gonna find a girl like her again. What an idiot, a fool I’ve been. I’ll never be happy”
Look at those thoughts. If we believe those thoughts, we will continue to be unhappy.