Not this year or anything specific but one that sticks out in you mind. I do a lot of riding (5 days a week minimum) but I have one ride my first year that has stuck with me through every ride.
A trail called foreplay. Only 6.5 km but on average take 4 hours to complete. 3.5 hours up and loop back for a killer 30 minute downhill. Now, at this point, I could probably handle it (although it would still be a hike-a-bike- but when I rode it FIRST I was 2 weeks into having a bike for my FIRST time. Going up was hell. Obstacles, cliff faces, total exposure on a freaking mountain, steep long climb (endless it seemed) and slickrock (I am from ontario...what the heck is slickrock....oooooooooo that stuff I slid into the crevace on ..ok)...4 hours up, no water (I now have a camleback) and I am sweating. My cotton shirt is soaked and I have falled 10 times. Keep in mind this is extremely technical. At the time I didn't realize but this is a double black diamond DH section (in bc blackdiamon is hard...double black is EXPERTS only)
We turn around. and come back. I am on my hardtail with an exr and ditchwitch rims...and the whole time I thought I would die. I had no energy and no skill. I am riding as much as I can, crawling others and just plain given'er as much as I can. I pass out near the end and eventually make it out. Fast switchbacks, vertical rocks, drops everything and I was just thrown in the mix.
To this day the best ride of my life, but at the same time that ride, broke my fork, both wheels and my bottom bracket. It showed me what riding really was and how much it hurt. Main lesson learned...bring water EVERY TIME.