I would start with something simple and that is to work to change the current beliefs you have about yourself.
For example: Changing your self-talk about yourself can really be a good step 1.
Quote:
I'm always nervous around good looking women
Rephrase this to tell yourself the opposite of what you wrote. I.e. "I have the right to be and I am becoming more and more confident and smooth around the hottest women."
Quote:
I was told by a few women i was handsome and all that but most of them were probably being nice.
Rephrase this to something like "I was told by a few women i was handsome and all that because it's true. In fact, I am and am becoming a guy who women practically salivate over."
Tell yourself these things every day when you wake up and before you go to sleep and also during the day. Eventually you might find yourself feeling like you are comfortable with making innocuous comment to a woman when you see her (even something like, "what time is it") to get the ball rolling in the direction of eventually doing full pickups.