I try to ride 4-5 times per week. I naturally choose WWC the most because I love it there. The atmosphere, the beer, the trails. Has a little bit of everything - and it's only 20 minutes away. The benefit of WWC is that you can log quite a bit of mileage without repeating in one ride compared to anywhere else in CLT. My normal loop at WWC puts me at about 25 miles - but you can get about 30 by riding every trail. Seeing the mileage on my computer makes me feel "better" about riding.
When I go to Sherman, it doesn't wear me out. I ride hard, but I typically will only do 1 or MAYBE 2 laps. But even after that first lap, I'm bored of it. I don't want to repeat it.
Try hooking up with fellow riders. I know when I'm feeling lazy, I text my friends about doing a ride that day. By committing to it, I HAVE to get off my fat butt and ride. Also, think about what your goals are. Do you ride because you truly love to ride, or do you ride because you don't want to run on a treadmill at the gym? I personally do it for both of those reasons - and I love to eat!! If I can ride 10-20 miles in a day, that gives me an excuse to eat my huge Italian dinner! .....Maybe that's why I'm 210lbs.
But I also try to ride as much as I can when I can because for work, I'm often out of town for a week +, eating at restaurants, eating sugary snacks, and sitting on my butt in a cockpit. So I always feel like I'm starting at square one each time I ride after a week or so out of town.
On a side note, if you're looking for someone to ride with and maybe push you, give me a shout. I ride at random times - typically middle of the day to avoid traffic. But I'm flexible. Love to have company on the trails and keep me from doing dumb stuff!