Welcome and congrats on the best thing you will ever do for yourself.
I am gonna attach a pdf book that offers great information, one to make sure you look at should be "quitting by gradual withdrawl"
As far as unsupportive peope, ask them hey would you offer a heroin junkie a needle full of heroin, if you can't support me Stay the XXXX away...
as far as work breaks, a five minute walk, around the parking lot, a few stretching moves, isometrecic exercises, deep breathing, visualization excercizes, ...
Regards, RJ - Free and Healing for Two Years, Eleven Days, 8 Hours and 32 Minutes, while extending my life expectancy 103 Days and 2 Hours, by avoiding the use of 29694 nicotine delivery devices that would have cost me $6,123.77.