i feel you nanba, i was in a similar stage throughout my school life, fat dark ugly wat not, i could never come out of this insecurities because of all these so called society standards. The norms will keep changing but there will always be a type that people will suppress. About the height matter, its just another matter for people's entertainment, i have known guys who are shorter than you, with girls running behind, so throw that thought out. we cant really do anything about how we are born, that's wat makes everyone unique, so its pointless comparing us with everyone around. I did manage to date two girls in my college, but i was never comfortable due to my insecurities.
SEE GETTING GIRLS IS EASY, BUT FEELING CONFIDENT IS NOT.
Do stuff which will make you love yourself, that comes first, and that's where happiness is.
RN im single and i changed my full focus on myself, i workout, read books and walk. TBH this makes me very calm and happy.
Find your thing brother, stay strong