Did it.

It's -15C, I have RA, I have an ankle that needs replacing, wrists that no longer function, and I need to loose more weight.

But tonight I tacked Chilly up, lunged her for 10 minutes, got the mounting block out (C held her just in case) and I got on Chilly.  Alone with no one else in the arena with us, I walked her around, stopped her, turned her both directions, and backed her up.  

She was so solid underneath me.  Even grown up, broke horses can be 'funny' with a new rider for a circle or two until they figure out the new person.  Not with her, she wanted to follow C, but once I encouraged her to walk away she listened to me.  

What a great ride.