Hi, this is really bugging me and i need help big time!!

Last weekend we went on a big lads weekend up North. The clubs were amazing and the women were like nothing i have ever seen before but i just couldnt drive myself to approach them and because of this i got nervous and my whole night wet down the toilet.

I got to stage where i couldnt even look at girls in the eyes, couldnt stand near them at the bar and the whole evening flashed past me ending in me walking home very very annoyed. Whats wrong with me?

Can anyone suggest where i should start to get this evil side of me out and destroy it. I am normally ok with girls but as soon as i hit a nightclub and become sorrounded by women i am useless!!!!