I deposited 50 bucks on UB and played out of BR and climbed up very quickly to 550 bucks.

I'm playing about 2 years but never took the game sereously ( did read only 1 book on sng's by collin mooshman)

What I need to do now to become better poker player and how I can know what is the best game for me ( I mean cash games or sng's ) ?

Also can someone tell me what games should I play according to my bankroll?

Thanks.