You have received a lot of great information Christian! Make your mind up to quit no matter what comes your way. As others have said, there's the physical withdrawal which doesn't last all that long (a few days of really strong carvings at times) but then there's adjusting your lifestyle to no longer include smoking. That's what takes a lot of patience and time. There will be triggers that make you think; "Hey! I should be having a smoke." because that's what you have done for years and years but now, smoking is completely off the table for you so learn new rewards to give yourself - not a smoke anymore. Quitting is a marathon, not a sprint. Stay firm to your commitment and be patient. It will happen if you follow the process - just NOPE! (Not One Puff Ever)