Almost 10 years....
I started at 16 because I was a good nerdy girl with rebellious intentions. lolol
I was never a passionate smoker, I kinda smoked on and off, until I was 22.
I quit the day my father died. He was only 58. He did not even smoke at all until he was in his 30es and started working as a professor. An MD and a DPhil, yet he claimed academia mede him smoke. Shall we conclude therefore that intellect kills? lolol
The day after he died, my mother and my brother were planning the funeral. I went to work. I was a graduate research assistant at the time. I took a break with couple of friends who happen to be employed at the university as well. I lit one up, then threw it away. On my way back inside I grabbed the half full pack of cigarettes I had and crumbled it as much as I could I threw it in the trash.
I never looked back since, never ever. I wish I had never smoked. I feel like I never did.
For all pondering quitting at this time, do it, just do it! Poisons are many but choose life, always chose life. Throw that shit away. The power of mind, it's all a matter of a decision. You can do it!