40 and fit?

Well, I'm "back on the wagon" and trying to get serious about getting into healthier shape. I turn 40 later this year and I don't want to start my 40s being overweight (or obese). I've managed to creep back up to the weight I was when I gave birth to my daughter over 10 years ago- but this time it's just me!! Yikes. I've been exercising pretty regularly since last summer when I got my stationary bike (with flaking out a bit late in the year when I had some nasty cold for about a month). Unfortunately, the biking led to no weight loss at all. I finally accepted that I would have to monitor my eating to lose weight. So last week, I started WW again. I am not registered with them this time, but am using the points system I used in 2007 to lose a bunch of weight (you can find the formulas online and I never used the community aspects of the program anyway). I am getting up early to exercise every morning (taking one day off per week) and so far think I've lost about 4 or 5 pounds (I don't officially weigh in until tomorrow morning). I know it will continue if I stick with it and the exercise only helps and makes me feel great. I'll plan to post over here every once in a while about my progress and I appreciate that others are doing the same! I should lose a minimum of 30 pounds and it would be even better if I could lose 40 (that would get me to my grad school, pre-baby weight). I've got just over 7 months until my 40th birthday, so I think I can be in pretty good shape by then. Here I go!