I'm a 19 year old male, and I smoked sheesha for about a period of a year (I quit about a month ago). By a year, I mean that I would go about once a week to a sheesha bar and smoke maybe 1 or 2 bowls between about 4 of us. Anyways, I'm probably being a little paranoid but I'm wondering how significantly this can contribute to my risk of developing lung cancer down the road if I never touch any sort of smoking material ever again?