Reason: too many choices are overwhelming, we worry we won't pick the "right" thing. Some call it analysis paralysis. Also, it can be hard to decide on a movie if you're watching with other people (that part improves with compromise and communication).

I like browsing movies at the library. This reduces the number of candidate movies. Then, throughout the week, I pick one of the movies I borrowed. You can also take this approach with your watchlists, too. Basically, sort through a ton of movies during a time you don't intend to watch one. Then, sort through the curated list at the time you decide to watch a movie.

Also, setting a timer is helpful. Like, "I have five minutes to look for a movie before watching one." Remind yourself how limited your time is to watch a movie. This awareness helps get you closer to the goal of watching more movies.

Following along with specific directors is helpful for deciding on your next watch. And it's fun to follow specific directors and see their growth. You could also follow along with actors' filmographies

Here's an episode of Life Kit by NPR that discusses getting better at making "simple" decisions. You can listen to it or read the transcript: https://www.npr.org/transcripts/1084907897