I also came across pics of my 19 year old self a few weeks ago (I'll be 41 in June), and it hit me like a ton of bricks. Especially because I never used to take pictures and have literally not seen my 19 year old self SINCE I was 19, whereas most people have more pics and may look at them once in a while, so the memory of how they used to look stays fresher in their minds. I used to delude myself into thinking that I was still ~80% as attractive as I was from 17-21, but seeing those pictures my first reaction was "holy sh*t, that guy was literally TWICE as good looking as me!" I said to my mom "holy sh*t, did I look that good?" She laughed and said "yeah, you did - don't you remember?" I said yeah, of course I knew I was very good looking but it literally vanished from my mind since the rate of change during aging is so slow. But when you see the pics from 20+ years ago and then see yourself now, it brings it to the fore. Pretty crazy to see.