Who here has been single all their life.

（´Д｀;;) i get really nervous around girls for some reason, especially when i like them. Is it game over for me?

.....what

Pain is awesome.  It's what happens when you spend 40 minutes pulverizing a 140 lb punching bag and your fists, elbows, knees, and feet are raw and bleeding.

You guys need to work out, gives you more confidence, gives you a bit of a high, and you feel so alive after you're done.

Don't say anything to her like that.  Just behave natural, putting on a facade is easily detectable unless you're an incredible stage actor.  Hint at it a little, she'll figure it out.  Gauge where you stand by how she reacts.

Don't go around trying to justify how you think the universe works with that kind of language.  Study sociology and psychology, then we'll talk.

If you're 20 then live for yourself.  You're too young to waste your time on something you can procrastinate on.  Develop yourself before trying to develop a relationship.