We often make things harder than they need to be. We wrestle with ourselves. If you have to agonize about whether you should do a particular thing, you probably shouldn’t do it.
We pretty much know the right thing to do most of the time. Not that there’s no need for further education or occasional guidance, but agonizing over what to do is often a sign that something is interfering with our better judgment.
It’s possible that the frustration is occurring because of a lack of knowledge. If that’s the case, you either shouldn’t be making the decision (because it’s not within your circle of competence) or you should seek the knowledge you’re missing.