I was a professional musician for most of my career. Toured, played clubs and bars etc. I saw it all believe me. I could say that you are in the minority having met a mate of 16 years in a club and be pretty safe saying so.
I'm obviously kidding concerning Amsterdam as donated by the
The OP stated several things that caused him stress and anxiety. If you have social anxiety issues, drinking heavily is not the way to deal with them. If anything, the first and wisest step to meeting a woman and not sounding like an idiot is to be sober and not smell like a brewery!
Honesty and some self esteem are the first steps. What would be wrong with being honest and saying "I really want to talk to you but I get really nervous when I'm around a pretty woman like you". The beauty of it is it's not a pick up line and that will show in your body language and eye contact. Some women find that extremely sexy.
Then if all else fails, go to Amsterdam!