But you should not be embarrassed by your playing. Apart from the rhythm problems there's nothing there I can see that should make you want to give up and join a Trappist monastery. Do Trappists even forbid piano playing? I thought it was just talking
Thank you there! The frustration comes from not being able to get a single good take. Maybe if I had played this at a concert a slip or two might be glossed over, but on a recording... On something that will be listened to again and again, at times by someone with the score in hand, a wrong note or rhythm just cannot be tolerated and I think everyone will agree there.
It is rather like walking on a tightrope. any single slip is fatal and, knowing that any wrong step is fatal. nervousness makes you take tha false step and fall.