Disambiguation, i.e. the process by which that which is unclear, open-ended, or otherwise inscrutable becomes known, interpretable, and decided.
Something which is ambiguous can become known to us either by empirical first-hand experience or by epistemic means.
One argument is that it's best to become comfortable with ambiguity, to take a relaxed attitude towards things that are uncertain, wait for things to become more clear before acting. There is clear value in this - namely that by doing so we don't need to actually face the reality of the thing that is ambiguous - but what if you instead took the uncertainty and started making attempts regardless? If you don't actually know what result you will get by doing something then by simply doing the thing you will get immediate feedback on whether what you did was effective or not.
Moreover if you have a problem that is in some respect intractable, then it is possible that any attempts to reduce it to something more tractable will simply become wasted time that could have instead been spent on simply ramming your head against it.
If there was a piggy bank full of coins in front of you, and you spent hours trying to figure out the most efficient way to remove the coins through the slot without breaking the piggy bank, you've wasted time trying to devise the perfect solution to a problem which was trivial if you disregarded the supposed rules of the problem. Oftentimes the "rules" are simply things we imagine, self-imposed constraints that we put on ourselves because "that's the way it should be done" or "I simply don't behave this way", or guidelines put in place by experts who have spent much, much more time than you thinking about a problem. The expert probably broke a hundred or a thousand piggy banks before discovering this more graceful solution.
You become efficient at a task by first doing the thing inefficiently.
You cannot predict the future, so why do you agonize over things that are simple? A complex problem necessarily has a plurality of potential ways in which it might be approached, and often each of these paths has a unique set of merits and demerits, and no one path is obviously better than the others. Then perhaps simply pick the one that appeals to you the best in the moment and stop worrying about potentialities. Sometimes you need to break the fucking piggy bank.
This does not preclude common sense. But if you have a complex, long-term problem and you haven't even started, and don't know how, just start doing something that feels like it might work.
Try to get into the habit of making things happen and living with the results instead of constant deliberation and worry.