I wonder if it would help for you to try to satisfice. You're not trying to choose the best option, you just have some minimum acceptable standard, and you're trying to pick one of the options (any of the options) that meets that standard. You could pick more-or-less randomly, or you could look for any inclination in favor of one of the options and then go with that one.
For instance, if there are 4 movies that you're trying to choose between, and all 4 seem like movies that you're likely to enjoy, then it doesn't really matter which one you pick. You just need to pick one of them. There are a few ways to do this, some more random, some using more general rules or heuristics which can be used for many different kinds of decisions since they apply to the decision-making process, not the particular content.
Just pick one of the movies. Don't think or try to come up with reasons, just select one. Maybe your selection will be influenced by preferences of yours that you're not aware of, or maybe it'll just be random. Doesn't matter, you picked one.
Decide you're going to pick one, and then wait until something good about one of the options comes to mind and pick that one. It doesn't matter what it is - it could be some good feature that it has, or just a vague feeling.
Pick randomly. Label the options 1-4, look at a clock, and take the minutes mod 4.
Let someone else decide. If you're going to watch the movie with a friend, tell them "any of these 4, you pick." Even if the decision is only for you (e.g., you're going to watch the movie alone), you could still ask someone else to pick (or give a recommendation) if they're around when you're trying to decide. Just ask "what do you think?"
Try to guess what the other person would prefer. If you're going to watch the movie with a friend, ask yourself which of the 4 he would like. Try to do this quickly, with pattern-matching and associations ("this one seems like his kind of movie"), not reasoning. As soon as you have an inclination towards one of the options, go with it.
Try to guess what you would prefer, treating yourself as if you were another person. Ask "which of these would MixedNuts like?" and use pattern-matching and association.
Try to predict your decision. "If MixedNuts had to choose between these movies, I bet he'd go with that one." (Or, based on past behavior in terms of going home for the weekend, and what's scheduled for this weekend, I bet that he will go home this weekend.) Then just do that.
Variety-seeking. See which of the options is something that you haven't done much of in awhile. e.g., I haven't seen many comedies lately, so I'll pick the comedy movie. (Or, I've been going home a lot lately, so I won't go home this weekend.)
Ooo! Good advice is good! Thanks!
Pick one
Pick at random
I do that for decisions that don't matter much (e.g. picking a movie). It's more problematic when I know I will regret picking the wrong one badly.
Wait for a good feeling
Good idea, thanks. Does this work in reverse, with a bad feeling about all other options?
Ask someone else
I do that as much as possible, but it fails more often that not. Polite bastards.
Ask a model of someone else/myself
Predict myself
Seek variety
All good ideas, thanks a lot! (Though variety-seeking contradicts the other...
Y'all know the rules: