One day at a time---and for me during he first few days, it was one hour at a time. Sunflower seeds, gum, throat lozenges, short walks, push-ups (provided a distraction), tea, water, herb tea, herb dip, use all your tools. PM anyone here if you need help.
Mentally, the following helped me: one, this is all my fault (helps overcome feelings of anger), so embrace "the suck;" two, one day (or hour) at a time; and three, I never want to go through this again!