With the one that has us doing this stuff, yes. She knows my weaknesses from when she had us standing on the flat part of the Bosu in circuit training. I had to hold onto her! I was not the only one, though. I did progress to being able to get up on the thing and sort of crouch. I couldn't stand up though. But, it's 5:30 in the AM. I really just want to get in and out. I have improved a lot, and I feel stronger. Balance is never going to be my strong suit, but I am glad I started this, even though it's 20 years too late. It's all tied up in my laterality, visual perception, and spatial ability, all of which I have very little. I am doing all of this balance stuff in a class in a very basic, no frills Gold's Gym. I used to belong to a very fancy full service gym/club, but I quit when I went back to school. I could not afford any long term personal training there, although I did a couple of rounds, none of which addressed balance, just strength.
I just keep focusing on what I *can* do, compared to in the past. And I come from a long line of uncoordinated people!
2015 Trek Silque SSL
Specialized Oura
2011 Guru Praemio
Specialized Oura
2017 Specialized Ariel Sport