i quit 15 years ago after smoking from the age of 12. I smoked for 20 something years. When i stopped i was smoking about 70 a day. I just got sick of the chest pains, the loss of breath and generally feeling like $hit.
I complained back then because it was costing me almost $40 per week to smoke
The best way to help stay on track is to set a goal for yourself...... look at putting the money away for something you really want but can't afford at this point in time. For me, the main inspiration was to buy a motorbike.
Don't even kid yourself that you will get over it totally.... even now, after 15 years i still at times get cravings. But i can fight them and have no desire at all to start smoking again... even if i get **** faced drunk, i don't reach for a smoke.
The thing is, you have to really want to quit.... if you do, then you CAN quit.
Those that say they want to but can't... don't really want to.