Ummmm, I'm doing this with an instructor, not on my own, furthermore, the impact of Nystygamus affected my ability to do more aerobatic manoeuvres, I was still perfectly able to fly the aircraft (and did so), so there is no safety issue here.
The lesson for me was that even relatively small (and legal) alcohol consumption the night before, coupled perhaps with prophylactic antibiotic use, the after affects of a cold and dehydration will affect my tolerance to aerobatic manouvres., thereby causing a wasting of wallet.