Two years ago I said I was going to clone Berzerk as my second game dev project, and made my first commit[0].
This year I basically tore the entire thing apart several times and wound up just working on general framework and game development code[1]. Some of it still doesn't work. Most of it is probably crap.
I also worked on, and have given up on, a HN-like forum written in Hack[2]. It wasn't very good, though. Just got bored with it.
I've taken a lot of Udemy tutorials for Unity and OpenGL, and gotten some Hello World stuff to run in WebAssembly.
Basically, I've either been very productive, or I've completely wasted the last two years of my life, depending on your point of view.
I also came across a pile of old cd/dvds I kept old code and short stories and things on and archived it. Found some PHP I wrote in 2004, and some old sites from when I used to blog regularly and review movies.
[0]https://news.ycombinator.com/item?id=10819380