I quit 14 yrs ago...know what you are facing. It was the hardest thing I ever had to do. I quit cold turkey...had a bladder infection first time in life. When I went to Dr she said it was what cancer of the bladder felt like...quit that day only out of fear. My addictive personality is such I knew I could never have "just one drag" and haven't. You are doing well to fill your time with positive substitutions. For me...the hardest was the oral fixation and what to do with my hands. Keep trying every moment and before you know it you'll find it hard to believe you ever once smoked.