How Do You Balance Cheering for Fantasy and Real Football?

I have never really been someone that is big into fantasy football. I am in one league this year with some other Bleacher writers, but that is it. I have not even made any trades, or accepted any of them. It is not that I am not into it, there is just a core problem I have in building my team. As most of you know, I am a fan of the Pittsburgh Steelers. They are my team, there is no one that is a close second. There are plenty of team I hate. The Ravens, Browns, and Bengals are the obvious ones, but there are others. I hate the Cowboys because they are the polar opposite of my Steelers. I hate the Patriots because of their dynasty in the early part of the decade, not to mention spygate. There are other teams that I don't hate, but yet, have a hard time cheering for. The Tennessee Titans were not on this list until the stomping of the Terrible Towel last year. My point is, there are many teams that I do not want to see good.  Here is where the two worlds collide. If I want to...