As a teenager I did something similar. Lived up in the mountains in Norway. Started the ride with ~10kms downhill. Decided that day would be the day I broke 100

As a teenager I did something similar. Lived up in the mountains in Norway. Started the ride with ~10kms downhill. Decided that day would be the day I broke 100km for the first time. After biking a further 80kms on the flats, I had the steep hills back home left. I got about halfway up before I had to get my mom to pick me up. Then I did small laps in the village afterwards to still reach 100k, heh.