.stop taking rejection personally.
The better way of looking at "rejection" is that - whomever is "rejecting" you - is actually doing you a favor.
It literally has nothing to do with you. It doesn't mean there's a solitary thing wrong with you as a human being.
It just simply means, that person has a different agenda.
That agenda could, conceivably [and most likely], have nothing to do with another person in the least.
Stop taking it personal.
Whomever just "rejected" you - has just freed you up to pursue something worth your while.
There are 8 billion people in the world. Don't settle for anyone that isn't willing to give what they get from you.
Technically, you should thank them for letting you go on to bigger and better things.
"Rejection" doesn't take ANYTHING away from you as a person. Nothing. Zero. It just allows you to be free for when the right person comes along.