Ask yourself these:
1. Do I really want to get good at this? If yes, then say, "I will put the time and money for it, and be willing to take the risk and approach that girl I find attractive. The girls I approach may say or do something that will hurt me emotionally, but I am willing to face that, deal with that, and not let it affect me. Also, I know that a lot of girls too will love me, and I know it's going to be fun."
2. How would it be like fucking her? Visualize it in your head. Great, innit? Ok, follow your penis and talk to that girl.