Thanks to everybody who offered advice here. I appreciate the different viewpoints and sources of info.

I think, after reading everything, I will aim to ride a minimum of 4 times per week, at 1 hour per trip. If possible, I will try to get in 6 to 8 hours if the weekend weather permits.

I'm not sure if I'll buy a scale. My belt will be a good measure, but the precision of a scale does appeal to my desire to see numerical results.

I've only had the bike 12 days, but I've ridden 9 of those days, and I already am beginning to feel more energetic, and my endurance has already increased a significant amount.

I'm just happy that I've finally found a way to exercise that I actually enjoy.