Congrats on your feat of strength! To others looking to quit, I've read[1] that it's dangerous to quit cold turkey. Ease yourself out, and save yourself from possible complications.
Thanks, I was also a chain smoker and for me quitting smoking is much more difficult. You get to experience hallucinations, depressions and severe withdrawals. Alcohol is just more about losing your social activities, and being weird around your drinking buddies, but eventually time will make them understand.