Well, it's definitely unusual to be your age and not had a kiss yet -- but that doesn't mean that it's weird per say, or that there's anything wrong with that.

What's not unusual is having doubts about your capabilities in finding a romantic partner. I have tons of friends with varying levels of romantic experience that still have the same worry "will I find someone? this is so frustrating, am i unattractive, etc."

So i see two ways to answer your TLDR -- you can either change it by becoming experienced in dating, or by finding a way to keep it from bothering you. Or, you could do both! Practice mindfulness and acceptance of your current situation and also take steps to do things you think will make you more likely to find someone

This might not apply to your specific situation I don't know, but hopefully it's generally applicable