I'm not going to lecture you on the evils of smoking but I gave up smoking 30 yrs ago cold turkey and I was up to two packs a day. It wasn't even health at the time I was worried about. They cost $1.25 a pack which was $2.50 a day which was $17.50 a week which was $910.00 annually which was almost $1,000. I started saving what I was spending on cigarettes and was able to take a nice vacation after a couple of years. I heard cigarettes are at least $8.00 a pack where I used to live in NY. OMG that's $56 a week! That's almost $3,000 a year! Wow, so if not for your health do it for financial reasons.
Ms.73 got it right, choose healthy snacks and take time to prepare a snack or meal, get rid of the slider foods. OMG, if I had tortilla chips in the house I wouldn't be able to stop so I choose not to buy anything that is detrimental to me. I was asked to bring a covered dish two weeks ago. Normally, I would bring my lasagna or some other Italian baked dish. I chose to make a Greek salad with dressing on the side.
If not for yourself (which you should be número UNO right now) do it for your family. They need you and for heaven sakes, go back to school and get your nursing degree! You're worth it! God bless and good luck!