I smoked in highschool for 3.5 years 10cigs a day on average 2002-2006. what are my chances of developing any related cancer in my lifetime because of that?

Time: If you do not smoke again, the body will repair the damage and in 10-15 years your risk will not be appreciably different from what is was before you started smoking. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine. Wish you good health!