Schneller, welcome. I can empathize with what you say, I was with a girl for two and a half years and was a validation seeking, insecure person. It ended when she ripped me to pieces at a time of her choosing in order to go be with someone else. Not the best point in my 19 years on this earth.
We all come to this material and forums like these for different reasons. You sound like an intelligent person and that is a good place to be starting from. What this material cannot offer you is a quick fix to life's problems. What it can do is enhance your skills in the area of social interaction and self confidence particularly as it relates to women.
The first question to ask yourself is what do you want from this resource?
I would suggest looking up David DeAngelo's lecture on "Becoming a man" and on body language. Find what base needs you are trying to fill and work from there. Build yourself back up from zero if you have to. When you are feeling as you are now it's hard to remember all the times that you have been able to interact well with people. There is NO ONE I have ever encountered who couldn't relate to other people in some way. Remember the successes. Plus you have skills, don't be ashamed of playing WoW, I'm a Warhammer nut and self appointed art nerd. Embrace your idiosyncrasies.
In short I guess what I'm trying to say is this; All the people I admire and those I consider best with women have a whole life package that they have created through work. Rock stars, businessmen, artists whatever- they all made their life the way they wanted it to be and are happy living it. Build your perfect life and success with people will follow. PUA can help build it but it is not the only building block. Cheer up, as the cliche goes there are plenty of fish in the sea and as Nietzsche might say "dare to become who you are".
P.S If you are ever in Melbourne and want a game of WH40K drop us a line
