How do I make financial forecasts I can trust?

When your forecasts feel like guesses you cannot stand behind, the discomfort is actually a good sign. It means you are honest about how little anyone truly knows about the future. The people who feel total confidence in their forecasts are usually the ones about to be most surprised. Your uncertainty is not the problem. A forecast you can trust is not one that turns out right. It is one built on assumptions you can see and defend. The number matters less than the reasoning under it. When you can point to why you expect what you expect, a forecast stops being a guess and becomes a considered estimate, even when it later needs adjusting. Start by writing the assumptions beneath your next forecast in plain words: what has to be true for this number to hold. Making the reasoning visible, even to yourself, is what turns a nervous guess into something you can stand behind and update. Trust comes from clear assumptions, not from being right.