Insecurity about lack of romantic experices

Ive posted about this in another thread but it’s still on my mind. Ive never dated anyone, barely even kissed anyone. (the one person I kissed was a crush I had who realized a week later they were uninterested). I’ve never known what it’s like for someone to have a crush on me. I’ve had crushes on other people and were not reciprocated. When I tell this to people I’m always met with “well you don’t know that for sure” or “you’re so young.” It never makes me feel much better. I mean other people younger than me don’t struggle with this. It doesn’t do much to make me feel less lonely now, I’m told I have to wait till I’ve gone to college to meet new people but I might not even be allowed to go away. And yet in my current high school, there is little to no chance I’d find anyone as it’s the same people I’ve always been around. I’ve tried talking to friends about my insecurities and it’s always too much for them. They can’t respond, they don’t know what to say. It makes me feel even more isolated. I think something is wrong with me, not only because I don’t seem worthy of anyone, but because nothing ever makes me feel better when I consider things.