Hi and welcome to HCM,
is indeed a very injurious habit . It has got destructive effects on the oral health as well as general well being of an individual.
Tobacco smoking causes many respiratory disorders and oral conditions like gingival inflammation
, periodontistis , tongue and lip disorders and malignancies , leukoplakia
and other cancerous lesions.
So considering these , please try and get rid of this habit.
Most important is your COMMITMENT towards quitting,
Your preparation and self motivation,
you can use habit breaking medicines available like nicorett tablets or chewing gums which help in quitting the habit
i hope this helps,