Think about things you liked to do when you were young, before alcohol stole the show. Some ideas: painting, sculpting, writing. Possibly more exciting activities: snowboard/skiing, rock climbing (they've opened some really cool indoor ones around NY- not sure if they have them in Washington), take a cooking class, make an appointment at the spa. I am personally happy having more time to read and exercise. As for blowing off steam, I haven't been TOO stressed out lately, but something active will probably be best.
Congrats on 11 days!