Don't be too hard on yourself BSLeVan. Yesterday I changed two tires
(shrader valves), installed two fenders, a rack and a Cateye Strada
cycle computer and it took me a whopping five hours. It wasn't hard
work at all but I had to keep redoing steps that I screwed-up.
Some days the brain just doesn't want to engage all the way.
The scary thing is, I've still got to adjust the rack some more.....
sure hope it doesn't turn into another all-nighter!!!
So if you only got a little messed up with that presta valve thingy,
you're doing O.K. by my score card.