I take it very seriously, but I do most of my hobbies/activities. I get mad when I don't have the highest batting average on my softball team, I am upset with myself when I take a bad crash skiing, I always wanted to be in the best guild when I played World of Warcraft, and I want my beer to be just as good as my favorite commercial beers.
I agree with the earlier poster that the social aspect is important. It is good to have friends around who remind me that my sacrifice fly still brings in a run, to tell me that if I'm not crashing I'm not trying, to make sure I head out into the real world every once in a while, and who are more than happy to throw one of my homebrews back with me, even when it didn't come out perfect.