Barely there

I just did 15 minutes on the elliptical this morning. After two nights out in a row for meetings, and several nights in a row up late, I'm out of steam. I'm glad I got to the gym and made the effort, but wish I'd had the time and energy to do more. Need to find some more time for rest as well as exercise. How would it be if I had children in addition? What if I were in grad school (which I'm planning) instead of community college right now? Guess it's all a matter of priorities.