I agree with Mari...
I like what I hear about Richard and his work so far
And the exercises should not cause you pain... that would be a sign that he was overworking you.

I know that you do not like the idea of the walker
I wouldn't like it one bit either. I don't know that it's really "vanity" Bobby. For me I think that it would be hard to acknowledge that I would have to accept THAT kind of/that MUCH help.
But you are having difficulty with balance and have had some falls, and the walker will help with that. Maybe with more exercises you can graduate from the walker, but I think it's something that you should try to warm up to- at least for now... I know that it has to be hard tho...

We all love you and want you to be safe