Some bridges get built while you’re walking on them. That’s how new paths work.

Waiting for a complete route before you start rules out most of the interesting destinations, because new paths do not arrive finished. The information you need for step four only appears once you are standing on step three. From outside that looks reckless. From inside it is simply how anything that has not been done before gets done.

Take the step you can actually see. Then look again from there rather than from here. Keep a real limit on how much you will spend finding out, and let the rest assemble as you go.