You're pretty young to be giving up on the idea on romance, zobijayo.

Not that I can't relate to your emotions...I can relate to how you feel, but, that doesn't mean that what you feel is true. It is simply an emotion. Emotions are perfectly valid. You feel them. They can hurt a lot. Emotions often cause us to feel miserable, lonely, pathetic, etc. All sorts of horrible feelings inside ~ but there are lots of wonderful emotions that we can feel at times too!
Rational mind is over on the other end of the spectrum from emotional mind. Reality ~ otherwise known as Wise Mind, is somewhere in the middle. Wise Mind involves both Rational Mind and Emotional Mind.
I would recommend getting some professional help from a T, to help you work through your feelings of hurt, misery, and look into your self-worth. I have a lot of personal experience with an extremely low level of self-worth and that has followed me throughout each and every relationship I've been in. Good and bad relationships, it has stayed despite!

I've also been in T almost the whole time, all of these years, trying to make myself better. It isn't easy. It takes time. Especially when you're with another person (like I am). Try to give yourself a break.
Things will get better.

You've reached out in here...that is good! Now, I think that you just need to reach out for a T near you for a little extra help too. We'll still always be here, of course,

Give it a try though ~ It could really help you a lot!