It's a delicate balance. On the one hand, you must always have an open mind for solutions that are not (yet) in your arsenal. It's like a vocabulary: you can't know too many words. One day, you're going to need that little-used one. Three-cushion solutions: same thing.
On the other hand, we play a percentage game. We need to make smart choices, pick solutions that work more often than the alternatives. If you see a video clip of a spectacular shot, you need to realize that the clip was posted in a forum or on social media, because the guy made it! It could still be a very low-percentage solution.
And then, as Blomdahl always stresses: there are different choices for different players. What works for player A may not work for player B, and vice-versa.
Find out what you are good at, and play it.
Find out what you suck at, and practice it.
This post could be a stickie in any billiard forum....hell, at a lot of other disciplines also.