I find the same happened to me- thinner but always smoking! It's a boredom thing I think. Keep your mind/ body busy and you won't want to smoke, I find that the same triggers that would make me eat before are the same that make me smoke- boredom, stress etc.
I have reached goal on S&S and now quitting smoking. My doctor directed me to local smoking cessation service, some doctors have them based at their surgeries but I live in the sticks so my appointment was by telephone. Had a quit chat with her on the phone, asked what I'd tried before and what I'd heard of.
They can provide gum, patches, all that stuff. Nowadays they also prescribe two types of medicine if you are suitable. One is called Champix, the other Zyban. You take the tablets for up to 2 weeks before quitting completely and the urge to quit just goes away. Champix works by shutting down the receptors in your brain which react to nictotine, so it's not enjoyable anymore. Zyban is a mild form of an antidepressant, not certain how it works but it reduces cravings.
I have been prescribed Zyban which I'm collecting next week, then starting it a week tomorrow. You keep smoking for up to 2 weeks then quit. You take the tablets for 3 months.
The service costs nothing except the cost of the prescription which is every 2 weeks, if you normally pay for prescriptions.