How can i become a "serious" Laser sailor? - laser sail numbers

I started my laser navigation spring in my club, and have improved greatly, so that I now propose to everyone in my disability, not in the national team. According to Hull, would like to start sailing with the appropriate laser class, and try a better sailor, I talk a lot 4.7/Radial circuit but I have no idea how it will go further, I am a member of the UKLA, but I can do more sailing laser?

Thank you:)