After smoking several packs a day for two decades (I'm 35), I quit cold turkey the day I paid my deposit on SRS in Thailand, about four months before. I'm at 8 days post op, lying in bed with a grin, no urges to smoke at all. Indeed, I tell anyone who will listen that SRS literally saved my life by making me quit.
Another story: when my elderly mother had dental implants, the surgeon gave it to her straight: You start smoking again, you will not heal. Not properly. There will be infections, there will be increased scarring, there will be complications. Your choice.
Is it really worth it? Use SRS to save your life. Quit early and stay quit. You will NEVER have a better reason in life.