My self-esteem has been crushed

At this point it feels like I’ll never get a gf. I’m low key giving up even though I’m 21 and have never asked a girl out.

Back in high school there were a decent amount of girls interested in me but I was too shy to make a move. I’m in uni and just feel like there isn’t even a single girl interested in me. It’s not quite true since I’ve gotten like a 100 matches on tinder and hinge but in person no one even shows interest. I’ve been told I’m good looking and I try to always dress nice, smell good, I’m kind and respectful. Sadly I’m 5’5 and this realization that I’m not going to get to 5’10 even though my dad is 5’11-6’0 is crushing me. When I was 19 I thought it wasn’t a big deal but I think about it every single day for manyyy hours and it’s just been chipping away at me piece by piece and I just feel hollow now. When I feel confident at home it’s just crushed when I go outside and see how tall all the other guys are. I can’t stop myself from getting saddened by it. I don’t know if therapy can help because contrary to other forms of body dysmorphia, height discrimination is a very real thing. Idk how to repair my self-esteem. Everyone says just be confident and I agree that it can help tremendously. But idk how I can feel confident when I’m constantly towered over by everyone.