Hey Schnitzle,
You sound pretty cool to me. You also sound pretty darned young to me. I'm riding my bike at 56, and some might think I look goofy doing it. But what I think about myself is way more important than what others think.

So think of it this way- you can either be a heavy 40 year old woman riding a bike and going to school....or you can be a heavy 40 year old woman who doesn't ride a bike or go to school. Tough choice, huh?

You go, girl!