not really an expert in this kinda stuff, but showing "dominance" can make some people come off as intimidating
we're not living in the stone age anymore, lol
First of all 175 cm isn't that short. I'm not that much taller. And "'Murica" is just a slang way of saying "America", since it looks like you didn't really get the joke. Height honestly shouldn't make much of a difference. I have this one friend who's really short, but has a large personality and is a really great guy, known him since elementary school. He's able to hit it off with and flatter any and all types of girls. Personality probably makes the most difference.
Secondly, Kenzi called you out for something I was a bit hesitant to mention. Your ways of trying to get a girlfriend are just, well, wrong. Maybe you've been watching too many movies, television shows, or anime, but you need to rethink your strategy. Real life doesn't work the way fiction does. Slapping is honestly pretty childish and one-liners are cringeworthy (you even admit they're "cheesy"). Just be yourself. Sorry if that's a cliche answer you've been told before and is not something you want to hear, but it's the truth. And the truth can suck; I'm going to hate paying taxes, too. There's a girl out there for you, for sure. And if you can't seem to click with anyone, then maybe you're not looking at things the right way. From your posts, it's obvious that you sometimes approach girls you're not familiar with. Sooo, I take it you only want to date them because they're physically attractive? I apologize for the cliche again, but looks aren't everything. Personally, the girls that I like the most are the ones I enjoy talking to. Personality is a lot more important than looks, no two ways about it. You can deny it all you want now, but in the future you'll join the bandwagon and realize a pretty face and a shapely body are overrated. I'm not sure what you're looking for in a relationship, but I honestly hope you're looking for a deep, meaningful one, not a one-night stand or something. Now, I'm only seventeen going on eighteen, so I don't know everything there is to know about romance, but I hope you seriously consider what I've told you. I didn't mean to sound that harsh; I just want to make sure you don't stray too far off the beaten path.
tl;dr