Yes i know what you are saying, i've been there, lucky i didn't read pua haters otherwise i would be less confident about myself and i would still be here with no grateful stories on my life.
So don't get yourself into a depression mode, you are better than that! There's always some motherfuckers trying to get us down.
About the sex, you could have made it, but don't worry about it, i had some experience similar to that, but i don't blame on me because i know that i weren't prepared, as i believe you also didn't!
Mate, i started like you, I've read and searched over web for a lot of shit, you know what happened to me? I started to think too much when i were with a girl, i analyzed every single thing on me and on her, even on my own conversation, and you know, you can't socialize and think at the same time, that's why i had some issues at first. So calm down! Don't read shit, take this as a social experiment!
And damn you know all the PUA's terms, please.... please don't read any more things!
If you want to make this more grateful and less theory, download some infield spy cams from PB and watch some youtube videos also about it. I believe that you have all you need to know, you just need to practice!
Also don't get rejections seriously, you'll get that a lot, just take it as: At least i tried.
And don't give a shit to haters, if he were your friend you wouldn't talk to him anymore and that wouldn't affect your life so, screw him...
About the girl, i've answered that to you, then just forget about it. Get another one, you'll see that there's always a better one

show her that you don't need her for nothing.
I believe that you can achieve an amazing life if you effort.
Best of luck mate
[EDIT]
Quote:
Right now im reading WEAPONS OF MASS SEDUCTION and The Book Of Pook. Somebody on RSD said
they are good reads, ok but you are right though, I can't spend my whole life reading SHIT, like the
Mario Luna books, his first books were about negging and being the prize, now his books are about
making her feel "special" WTP MAN!
It has a reason, you wouldn't neg a girl for life! Also take good care about negging! You only can apply it to bitches and you can't do it over and over again. I usually throw 3 negs for a girl, i don't go beyond that! If you neg the girl too much she'll get offended and will hate you. I see negs as a playful insult, but if you do that much, girls will lost the idea that you are playing with them!
So what i mean is, at some point you should make the girl feel special.
Also you can start to make the girl feel special from the beginning, it depends on how you want to do it.