About 10 miles into the ride, I encountered the Wall. It's a short, steep hill -- I think my Garmin said it was 15% at one of the steep points. I thought I could make it, since I've been riding fairly regularly and I have a nice low 30-34 gear. But no -- about halfway thru, I ... um ... had to take a break because I got violently ill. Then, to add insult to injury, I couldn't get enough momentum to get back on my bike, so I walked up the rest of the hill.
After that fiasco, the ride got much better.
I imagine that some people try the wall and don't make it.
I also guess that there are some who don't even try.
You did GREAT!
If you don't grow where you're planted, you'll never BLOOM - Will Rogers