I think I was sixteen or seventeen. I had never backpacked before, and I went on a seven day solo backpack trip, in the Adirondacks. I took a bus from New York City, got off in Keene Valley, opened up my USGS map (in town) to figure out where to go.
I had a kids pup-tent to sleep in, no sleeping pad, and no floor. I brought a fishing rod, and ate fish two nights. I brought canned bacon and some canned stew, as well as other (more sensible) foods. No stove, just campfires for cooking.
Of course, I was wearing cotton pants. All I ever wore at that time was jeans. Heck they probably were even bell bottomed. It rained 5 days on that trip. Then, after the rain, it got cold. I was camped at almost 4000 ft, and froze.
One morning, I ate a jar of peanut butter for breakfast, because it had been raining so much, that I couldn't get a fire started.
I saw very few hikers the whole time. I remember meeting Steve and Gordie on Gothics, and reclimbing it in the morning to watch the sun rise. I also met Kerry, a woman hiking solo. Probably uncommon at that time, but it never struck me. Funny, that after almost 35 years, I still remember their names.
It was a great trip.