I've come to RPGs from a Wargames background, mostly Warhammer and such.
In wargames it's kind of necessary to powergame, when everyone else is also powergaming and will massacre your army if you don't. The problem is that I'm so used to the mentality of wargaming that you play to win, that I end up doing so in RPGs without even meaning to. I'm now kinda desperate to break this habit.
How can I break my mental habit of playing to win when I sit down to enjoy a roleplaying game?