I'm not that advanced myself, but my one piece of advice would be this:
Do not give up.
Sometimes you feel that progress is slow. Sometimes you have a shit day of game, or even long periods where nothing works. These setbacks are temporary as long as you keep on pushing and try to learn from them. Friday, I had a shit night where my friend was pulling and kissing all night, while I did pretty much nothing. I felt tired and frightened, and I wanted to give up. On saturday, we went out again. This time I did something I have never done before, NC at a loud bar with a dance floor. I called her on Sunday, and have a "date" set up now. If I had given in to my feelings of failure on Friday, I'd never have made this progress on Saturday and Sunday. My buddy and I are going out again tonight, after my date
I'm no PUA, but if I stay on the path I may become one. This is true for you as well!