As a Catholics I should go to confession and confess my sins to the priest for God to forgive me. I believe it’s an important part of my faith in order to get to heaven.

Is smoking a sin though because while it’s not stated in the 10 commandments, human life is a gift from God and belongs to God alone (stewardship) we all know smoking damages the body and effectively you are shortening your life therefor killing yourself in a way?

So is smoking a sin?