Thank you both so much!! I appreciate the welcome, support and encouragement. mecomp - a Master's at 46 is probably more awesome than a Ph.D. at my age, so good for you! You can totally do it!
My biggest setback is the injury which prevents me from doing exercise, but I just need to be creative. Unfortunately I can't afford gym, exercise equipment, etc. so I'm sticking to DVDs right now, but all you need to do is move around, right?