When I read your first post I laughed out loud so hard. I did a 150 mile ride over 2 days and by the end, you would have thought I was a witch! Everything pissed me off! Yet I long to get out and do another long ride this weekend.
As for the tire changing thing, my bike shop guy told me to carry a cell phone instead of a tube. Guess I must look to stupid to be able to change a tire. Maybe I should have told him I change a lot more than that on my car, so I might be able to handle a bike tire! Ohwell, I had to laugh. Then I went to another bike store and got what I needed.