Get into fighting games.

Street Fighter 4: Arcade Edition
Divekick
BlazBlue
Skullgirls
Street Fighter X Tekken

just a few good ones

why would you want to play another game that is extremely similar to the one you are already into now?

you probably are starting to get bored of the game but you want that same feeling around the time you first started. I recommend getting into real fighting games, they have a high re-play potential and you can play until you've mastered like everything about every character (but you can't cause that's pretty much impossible). Or, you can sit down with one character you like and learn all the ins and outs and strategies.