An actual observation to the contrary of your assumption. Good."...I felt great."
Sounds like a bunch of mental uncertainties to me.. and those will slow you down more than a bad taper will"...if... I'd... and would..."
Try to keep your focus on your races rather than how you think you would or might feel in the week(s) leading up to them. Have a good taper plan, and the taper will be there. Don't waste focus with the if's and would's.
"...concentrate, focus, power.... make good fight." - mr miyagi