What are the chances of surviving lung cancer if caught early as a tiny nodule?

Excellent, indeed. But as a doctor who has specialized in treating tiny lung cancers for years, I have never seen one is someone as young as you. It is highly unlikely that you have lung cancer.
Pretty good. Survival from lung cancer is stage specific, meaning the earlier you find it, the better the chances. Stage 1 has a cure rate overall of about 66%. Stage 4 about 4%. Each case is different, but these are general statistics.