It's definitely nerve-racking to be the center of attention. I'm not the kind of an actor that just craves attention 24-7 - but it's part of the deal. You're the leader on the set.
Going on Letterman is like going off the high dive. It's exhilarating, but after a while it wasn't the kind of thrill I enjoyed.
My best idea was to not accept my wife's negative reaction when I asked her to marry me.