How long does it usualy take for smoking related cancer(lung, throat, etc) to form?im about to be 25 and trying to quit.if i quit soon should i be ok?

Semper Fidelis: I just read if you stop smoking by about 30 your chances of lung cancer later decrease by 90%,so you're ahead of the game.Keep it that way.And any other damage you did (like chronic bronchitis and/or emphysema) can heal slowly over timeQuitting is tough for some people.So what. You'll have to start thinking like a Marine.Focus on the goal and get there at all costs. Always Faithful to your health.