why i want to quit

i want to quit because im only young and don't want to have the fitness level of a 35 year old anymore,im sick of stinking like smoke (its true smoking is a major turnoff for girls apparently). i just want to be clean again and be like all of my friends. it would be nice to save a little money as well although thats never really bothered me. im more concerned about my health and the fact that i know if i dont stop now itll only get harder and harder as i get older and smoke for longer.