Thanks Muse, I am not so bad - my writing is good, but my large motor skills are quite poor.
I find that I 'forget' easily what I have been shown, so I have to re-check with the physio / pilates teacher. I also say that you have to practice a lot to begin with so that your body gets some memory of what it should be doing.
It was a physio assistant, explaining severe dyspraxia about a child that helped me realise. I was always the child 'in trouble' at school for 'not trying' in sport / PE and last to be picked for a team. I still remember being quite unable to understand how you can vault over the vaulting horse, when others made it look easy!
My salvation was swimming, where I seemed to be able to co-ordinate (huge thanks to my parents for finding a sport I could do) and which has stood me in good stead over the years. I still remember how I felt when we did swimming at school, and suddenly girls who had been unsympathetic to my sports efforts were the ones who 'didn't get it'.
That is why I always advice those who don't 'get' physio exercises to ask for more help.