Balding has ruined my life

[AliLarsen]

19 years old and I think I'm going bald I've always had fairly fine hair but I'm sure my hair is reeceeding. Ever since I've noticed it it's become a obsession im constantly paranoid about what other people think I don't see my friends anymore as they all have thick hair and even hairlines I honestly don't know what to do anymore.
I have zero confidence at all when it comes to girls or making friends im seriously becoming depressed.
I was messing about with one of my friends in school joking around and he just said "Don't lose your hair about it" and I've never felt so small even though he was messing around and having a joke I honestly have never felt so upset I'm only 19 I should be going out to night clubs and going out with friends but all I seem to do is work and spend my spare time at home not going out.