I've been living 14 months with a smoker. will my lungs have permanent damage from the second hand smoke and will it affect my athletic performance?

This is hard to predict. It is certainly less risk than if you were a smoker. Some people have underlying lung conditions that would be affected more by exposure than others. Increased frequency of upper airway & sinus infections are well documented. However, the lungs do have self cleaning abilities to remove some of the debris. It would be something to avoid when practical.

If the exposure to second hand smoke has ceased, you lungs should recover to their baseline status in a year or two. If you are still living with a smoker, try to negotiate a no-smoking in the house arrangement. You may need to involve your parents in it. Wish you good health!