the best bet to make it is

distraction ...........the more u watch the clock the longer it feels the more u feel the edge

u have a computer hit hulu or netflix and veg out on a bunch of tv shows u like to kill the time and take mind off it .........set the alarm on your phone to give u 20 30 mins to make to appointment

if that is not your thing then go for free online games ........there are bunch of them just little java games u play ....this site even has some in the bottom bar