Learning to cook is one of the most important things I've ever done for my creativity. Not only does it help you get into building things, but it's a great way to blow off steam and boost your self esteem with small successes. I learned from a friend who taught me his "no recipes" approach, but I'm sure a cooking class would do the trick if you're not an improviser.

A meal or two per day and suddenly everybody is complimenting you.