You might just need to reduce choice anxiety.

Once my library got really big, I would find time to game, but then waste it on figuring how exactly I want to spend the time. End up on youtube or something and not actually get into a game at all.

The solution was to keep just a few games favorited, and forget the rest existed.

When I'm done with a game, it gets unfavorited. When I buy a new game it gets favorited.

If the list gets too short, I might do some spelunking in my library to favorite something from my backlog.

This way, each time I sit down to game, I have a very short list of stuff to start or continue that I might actually manage to pick from.

I have exactly the same feeling. Work life and kids. When finally I had two hours of free time at 21pm when everyone was sleeping the other day, I spent one hour looking at my huge steam library of games that I bought on previous sales and still never played. I really wanted to spend those 2 hours on a good quality game but could not figure out which one. In the end I figured out it was not worth starting a new game for only one hour and wasted the remaining time watching useless stuff on YouTube…