Its on again. Day 1

So I was able to complete the last bet. My cardio is in much much better condition. Unfortunately, I didn't lose much weight as I was hoping. The bet is on again. This time, the goal is to lose 20 lbs in 6 months by working out at least 3 times a week. The first day of the bet was 2 days ago Sunday, and my first day at the gym was yesterday.