More than a few of my friends and family members have managed to beat their habits after 10, 20, even 30+ years of daily use. For some it took years whereas a few of them stopped cold turkey. Everyone is different, so try to constantly remind yourself that no matter how lengthy, grueling or difficult your personal journey may become, it is absolutely possible and you will achieve a smoke free life as long as you stay committed to the change!
Congratulations on making the difficult decision to kick an extremely destructive habit & move toward a healthier lifestyle, bro. For what it's worth, you've got my support and respect!!
Cheers. Good luck