WISH 47 is Learning Your Lesson, as follows:
Name one lesson you learned in gaming that you will (hopefully) never have to learn again.
So mine is “Differentiate.” I had an awful problem early in my gaming career; I tended to see other people doing cool stuff and I wanted to do the same cool stuff. Self-esteem issues, probably. At one point a friend pointed out in no uncertain terms that I was stepping on her character’s schtick.
I think that I don’t do that any longer, in part because I have a fairly strong belief that I can come up with my own cool ideas. I still have a tendency to worry about toe-stepping.