I'm pretty good looking but I've always been shy. I can get an enjoyable conversation going with girls but I don't know how to escalate without sounding like a creep. I'm also terrible at flirting. I've noticed that I fall into the friendzone easily because I'm sometimes too nice or just fail at advancing the relationship. What are some good ways to get # closes?

Are there websites that you guys know of that involve improving game with girls? Looking for an online version. Thanks guys