Most people treat fear as a signal to stop. If something scares you, the fear is telling you it's dangerous, wrong, or beyond your capability. That interpretation makes some sense. It's also, in most non-physical situations, completely backwards.
In almost every meaningful decision I've made, fear was present. Starting a company. Ending a relationship. Saying something publicly that I knew would be unpopular. Moving somewhere new. In none of those cases was the fear telling me not to do the thing. It was telling me the thing mattered.
Fear is proportional to stakes. You don't feel afraid of decisions that don't matter. The things that scare you most are usually the things that would change your life most if they worked, and cost you most if they didn't. That's not a reason to avoid them. That's the most direct signal you have that they're worth doing.
The question worth asking when you feel afraid isn't "should I stop?" It's "what specifically am I afraid of?" Usually the answer is embarrassment, failure, or loss. All three are survivable. Most people have survived all three and are fine. The fear makes these outcomes feel final when they almost never are.
There's a different kind of fear worth listening to: the quiet, specific kind that shows up when something is actually wrong. Not anxiety about a big decision, but a small persistent signal about a person or situation that doesn't add up. That kind is worth taking seriously.
The trick is learning to tell them apart. One is fear of consequence. The other is recognition of danger. The first is almost always something to walk toward. The second is almost always something to walk away from.