I am really glad that you could see past the discomforts and have fond memories of this trip.
One of the things that stands out is your interaction with other cycle tourists. While we are travelling around the world I am almost jealous of you, because one of the things we are missing is this interaction. We aren't seeing many bike tourers in campgrounds... and if we do, they don't speak English, or seem to make a strong point of keeping to themselves (this more than the language).
Kudos to you, also, for the thoughts about helping out the stranded couple. Don't sweat it, though, in that you weren't able to help. It's the thought that counts, and it's something that will likely stick with you throughout all the cycle-touring you do.
And, finally, practice really does help for those longer trips. It helps iron the kinks (in the back as well as well as the planning)