How I did it: I I worked out 15 times. It doesn't sound difficult, but I just made a list and logged my workouts. The key was to check the list on a regular basis to remind myself how far I had to go.
Lessons & tips: Try to get most of the workouts done at the beginning of the month so that you're less likely to fail or get too stressed out at the end.
Schedule your workouts and make tons of backup plans just in case you're like me and don't exercise regularly.