Good luck! I quit cold turkey after 20 years of smoking, and I started just like you at around 10 or so. The year after I quit was a bit weird, it was hard the first month or so, and got substantially better every day. What helped me not to start again, is that feeling that it might be weird now, but if I start again, that would mean all those terrible first days were for nothing, and I hate suffering with no purpose.
After a year I randomly realised that not only I don't want to smoke anymore, the thought alone is a bit revolting, and that's when I knew that I'm finally done with the whole shit. Gained a bit of weight though, nicotine is a wonderful appetite suppressor, but never regretted it.