You've actually tried it? Lol I hope you aren't being serious... if you are you should research the drug (yes drug) for yourself. It's 10 times worse than smoking for your lungs and is the gateway drug... so if you have tried it you're probably on Heroin or something now. Hopefully extacy :P
Average smoker smokes around a pack of cigarettes a day, quite a few people more. A pack is 20 cigarettes.
No pothead smokes 20 joints/blunts whatever a day. You'd be too high to light the next one. People I know smoke maybe 2 or 3 at the most. And no, the smoke from weed is not 10 times worse for your lungs.
And no pothead I know has gone on to get addicted to hard drugs.