never get lured into thinking one smoke will be ok

I  have quit smoking before, I went 8 years without a smoke i was so proud of myself and did not crave a cigarette at all or so i thought, one day i had hurt my back and everything i tried was not giving me any relief at all i was in so much agony and stressing as i could not work due to my back pain, i dont know why but i grabbed a cigarette and the rest as they say is history, yes i was ashamed to say that i started smoking again, and i started smoking with a vengence a packet a day. and i did not want to stop, i smoked for 4 years up until i decided i have had enough so here i am 3 weeks  and have not had a cigarette and im doing really good, i do have cravings every now and then but they are getting easier to manage every day..so my advice is that you always have to be on guard and always remind yourself that you are a non-smoker. because you can slip up and end up smoking again even years after you have stopped..