Mentally exhausted

I am so totally an introvert. The kids school year will start next week (late, I know...) and this week they've had their class gatherings. I've got two volunteer jobs with the school, I'm the class rep coordinator for Kindergarten, and a class rep for Paige's class. So I've had to do a lot of talking to new people, and socializing and being in charge. It just totally wears me out. Plus with the training I'm doing for a triathlon (just a few more weeks! yay!) I'm all used up physically and mentally. I'd love to just stay in bed and read all day. But I've got another big day tomorrow! Yikes!