| Number one thing you should do is make your doctor refer you to a nutritionist. Developing a personlized diet with the assistance of a trained professional will be extremely helpful. Where the doctor was talking about limes, a nutritionist will tell you about meals.
My advice for getting exercise is to get a treadmill. You live in Texas, and I know from experience that it's hard to convince yourself to walk when it's HOT. My wife and I bought a nice treadmill recently. We rent TV series on DVD from Blockbuster, things like "Band of Brothers," "OZ," "Six Feet Under," and "Angel." Each afternoon, I watch an episode of a show while walking on the treadmill. I'm getting back into my routine now (I stopped doing everything while I studied for the bar), but I'm able to keep up a 3 mph pace for an hour. It's good cardio exercise and I'm getting to see great shows I missed while they were on cable. We don't have A/C, but the treadmill is just under a ceiling fan and it's not too bad.
If you can commit yourself to exercising everyday for a month with no breaks, you'll find it's much easier to maintain the habit, or so I'm told. It takes about 27 days to build a new habit.
I don't know if my exercise plan will work for you.
But trust me on the nutritionist thing.
--G | 
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