Doubt, of whatever kind, can be ended by action alone.

Some uncertainty cannot be resolved by thinking, because the missing information only exists on the other side of doing something. You can weigh a decision for months and land exactly where you started, since the question was never about analysis but about facts that only a trial produces. Deliberation past that point is a way of staying comfortable.

Identify the smallest test that would tell you something real. One conversation, one week of trying it, one honest attempt. Ten minutes of evidence beats another month of turning it over.