I did it! Today I rode a bike for the first time since I was about 12. My son wouldn't let me get on it until he got the camera ready--he wanted to video it--"In case something funny happens, we can win big money on America's Funniest Home Videos". I was pretty wobbly but I made it ok. I was on a men's bike which doesn't go well with a girl in a skirt but I put exercise capris on under my skirt and went with it. It wasn't pretty but it was modest and it worked. The kids kept yelling at each other, "Don't get too close to mom, just in case!" and I think they were actually trying to make the neighbors notice what was going on. Two of them were outside. I waved.
I went through the neighborhood twice-- 15 minutes.
Overcoming mental blocks that tell me I can't---and replacing those with thoughts of "Yes, I can. Just watch me".