How do you gain confidence/self love?

Long story short I don't feel like I deserve romance in my life yet. I feel like I got nothing to offer. I have felt this way for most of my life. Even though I have developed plenty of hobbies (I dance, skateboard, climb, go to the gym, etc.) and social circles. On one hand I am happy with myself and on another I feel like I can't offer the other party anything, romance wise.

Normally others would say 'You'll find someone dont'cha worry 'bout notin' ya'hear?' But I am at a point now where I hope a woman will not develop feelings for me because I am afraid of disappointing her. And through the years this only been getting worse. I know this is not a good way of thinking but I just can't shake it.

I want to (mentally) change but I just don't know how. So if anyone has got some tips for me (really anything goes) that might help I would very much appreciate it.

Note: I don't care if the process of learning self love is slow, I just want to know what the process involves.

Edit: I am reading some great suggestions. So thank you all for that. Just as a reminder, I am not expecting people on the internet to fix my problems. Just some general, rule of thumb, tips (and or tricks).