What do I need to do to be successful?

Anytime I talk to girls I crash and burn and they pretty much say get the hell away from me.

I have a friend that is 6'6" and he is a natural, when we got out girls throw themselves at him. I've see girls ask if he's single, or they say you're so beautiful I want to hang out with you. It's Crazy how easy it is for him.

I'm terrible at game and im 5'9". I do my opener and girls literally shun me away.

It is depressing how easy it is for him and difficult for me. What do you recommend? I want to improve my game

I want to improve but I don't know what I'm doing wrong? Am I just too short? I hate my height