That's the thing, eventually one of the two sides will take over. Either you'll go into the FG's too far by habit, or start phasing them out too much by mistake. The only time I've ever been able to legitimately ration my playing for anything was with God of War 2 where I could only play for 2 hours at a time, but that was less rationing the time for something else and more that...I just couldn't play that game longer than that a day, it took a toll. Other than that, it's very hard to actually do.
As for CA...yeah, honestly, it's not worth it. I gave it a chance first day but Team Tekken don't give a shit other than Steve, Aris is too much of a creep, Max and Spooky sound hella bored, and the rules and changes they do are complete BS half the time.