I'm going to learn something new, like soldering. My wife tried to quit smoking 3 different times. Finally, she got bronchitis and just couldn't smoke for weeks. That was the last straw. She hasn't smoked for 10 years now. It's one of the hardest/best things to do. YOU CAN DO IT!
Also, good luck with the transition. Don't let ANYONE tell you what you can, or can't do! A friend of mine came out recently with similar news and lost a couple friends. That would be so heartbreaking. Go where your heart tells you and you'll never be wrong.