I will be participating in my first half marathon in 18 weeks and 1 day!! Working 12 hour days at school and then coming home to plan lessons and work on my masters HW, it isn't always easy to fit in that time at the gym. I am determined to run this half, and have already paid over $100 to do so, so now is my time to make it happen. You never regret having gone to the gym, but you do regret not. Training for my half-marathon begins October 2nd.