I smoked for about 12 years and quitting was probably the roughest but best thing I’ve ever done for my health. Within the first few weeks, I could actually smell and taste things better, which felt strange at first. I also stopped waking up with a heavy chest and morning coughing fits. It was gradual, not overnight stuff, but around 2-3 months in, I could feel the difference in how much easier it was to climb stairs or go on a walk without feeling winded.
Cravings were tough, especially in the first two weeks, and I had to change routines like avoiding certain hangouts or habits tied to smoking. I also got some help talking to a counselor because most of the addiction for me was stress-related. If you're dealing with more than just a habit and it’s become part of a bigger issue, have you tried Abbeycare? They do proper rehab with support that actually sticks after treatment.