You need to think long and hard about smoking vs. surgery. Those are two gigantic life changes you are trying to accomplish at the same time. It is really important that smoking stays out of your life forever after surgery. Most people need help quitting. Chantix, family and friends' support, smoking cessation programs.. all these might help. Even if you need to delay the surgery to accomplish quitting for good, it will be worth it! (And if you think the cravings will be better after surgery, they won't. The cravings will probably be worse.) You. can. do. this. !! Just make sure you WANT to quit more than you want that cigarette. If you do? Then that desire, combined with external help, will get you there!