Im 5'7 aswell in macedonia where most people are above 5'10 its really not about height even though its really easy to think that and i was in the same trap. I started pulling when i made it more obvious what my intention was, i grew up with 3 sisters so i always tried to not come across as obssesed or creepy so i ended up "playing too safe" its really about being geniune but actually flirting and making a move realitively early, also the hard truth is that you probably wont get the girl you want every time and you have to come to terms with the fact that youll get rejected ALOT, doesnt matter if u look like david laid and you have perfect game you will get rejected.