I smoked for 15years and quit 6 years ago. You can do it. I did it cold turkey as well and what I did was sign up for a marathon, told everyone I was doing it ,raised money for a charity so I couldn't back out , and this got me through my first year. I'm not saying go run a marathon (I'm sure you have enough on your plate planning the wedding.) but set a goal, run a race and start feeling better about yourself. Quiting smoking has changed my life in so many ways. You can do this. You're worth it!