How to get her? What should I do if I want to be her bf? And so on. Gimme advise

beat up her boyfriend to show your superiority

girls like that shit

Get him drunk, then kill him on the side of the road. Upon killing the king, you'll be an eligible suitor and likely be accepted as King. Just make sure she's not actually your long-lost mother, so you don't have to stab your eyes out.

Toribash community are not the right place to ask for advice.
If you want tips, for fuck sakes use WikiHow.

http://www.wikihow.com/Get-a-Girlfriend-as-a-Nerd

Wow you get whipped easily

I'm guessing you are twelve and I think you aren't thinking with your brain. But with something else.