Your last point is the most important one to me. I've got to realize not everything happens because of me, not everyone's paying attention to me through the day. Regarding your bar experiences, holy shit. I've been to my fair share of bars and clubs alone and the most attention I ever got was another man teasing me for looking young (short, minority). I can't deny a small amount of envy for introverted-but-attractive people who get an automatic leg-up from their appearance. That must help enormously.

I am short and minority. If you want attention in a bar, get out on the bar floor and dance! If you want more attention, walk to the front of the dance floor, turn around, and dance facing everybody! I am short and minority and the one time I did it, all the girls went googly-eyed staring at me for the rest of the night. One girl who wanted my attention wasn't happy I was talking to other girls and not her, and when she left hours later, she made the point of deliberately walking past me rubbing her chest against me, I got the idea she wanted to say "You missed out!".

Make sure to take a few hours learning dancing from someone who's really good at it, or go to some sort of dance class, and pick the right club for your dance.

In my experience, your appearance only matters for the first 3 seconds of meeting someone, after that it's all down to your personality.

If it makes you feel any better, I'm also short and a minority. But if that's going to be your excuse, you'll have to do a lot better!

Remember: everyone is attractive to someone. The point of mentioning women buying me drinks wasn't to brag, it was to point out that as you become more at-ease and confident, it shows.