I'm 19 aswell and i've been balding since 15, started shaving a couple of months ago and the first thing i thought about was how my dating life would be like since I already wasn't much how a ladies man. To my suprise i get alot more girls now, the shaved head turned out to be a huge confidence boost and I feel really good about myself. On apps like badoo a bald head might nit work as good as hair but i've met a couple of girls there aswell, gotten a lot of comments that i was hot and i hooked up with a girl from there. This would have never happend before because i would have been to worried about my hair when i met her.
Confidence takes you a long way, just talk and act confident. Some of my friends whi has a full head of hair, a really nice haircut, good clothes and a really well trained body have a harder time getting girls than me, in my experience you just have to know how to talk to them. Focus on them and don't do what i did back in the day, always trying to get confirmation that you look good from here. If you are already talking a girl remember she is already talking to you, she chise to keeo the conversation going when she could have chosen to talk to someone else or do someone else, you don't have to worry if you look good or not at that point because she wouldn't talk to you if she didn't fins you intresting.
This is just my experience i have no idea if you're already applying this or not but i hope it helps!