Strive to become comfortable with uncertainty and doubt. At first your instinct is to arrive at certainty, to hang onto “facts” and put things in boxes. It can cause anxiety to leave things in some state of either-or-maybe, but it’s a critical too. I’m not arguing for global intellectual relativism, but a lot of what people settle on with certainty isn’t certain. Ask endless questions, and assign weights to answers, but even when one is 99.9% likely, don’t totally ignore the other 0.1%. Take opportunity reevaluate what you “know” based on new information, and try to avoid traps like groupthink or contrarianism.

Above all, accept this as an ongoing process that only ends when you die.