Oh, I would TOTALLY get cold feet. I would worry about his breed, my clothes, getting leads, is the bridle too old/out of fashion? Does the saddle fit, do I look like an old lady re-rider?
His canter is good but we have a hard time with left lead. Balance has to be perfect and me being the old lady re-rider, constantly makes him work too hard to stay balanced. And his endurance is still a major work in progress (as is mine!)
That said, I bought 101 dressage exercises and am working my way through, starting from page one. I’m doing all the exercises at walk and trot right now, working a little bit of canter, and once the canter is improved will go back and work them in canter as well. I love the variety the book gives me, and it gives me purpose for each ride.
And the old man is in heaven. I thought it was a fallacy but he truly likes to work. Not too hard, maybe, but he practically glows when an exercise clicks for him and he understands the ask.
Good luck at your clinic!