You should see your dentist to discuss your problem with him because eventually this could not be happen.
As we all know that smoking is not good for health as well as oral health. So it advisable to quit smoking before it cause serious affect on your health.
You can try below mention tips for proper health routine.
1) Use an antimicrobial toothpaste containing fluoride.
2) Properly brushing and flossing.
3) Avoid sodas, coffee and alcohol.
4) Consume Calcium and other Vitamins.
5) Use mouthwash
6) Change brush every 2-3 months.
7) Clean Tongue.
8) Visit dentist every 6 months.
9) Chew sugar-free mints or gum.