How do I get more confident flying drones in tough conditions and complex airspace?

You can fly most missions clean. Hard weather and busy airspace still rattle you, because that is where a small mistake turns into a real one. That nervousness is not weakness. It is respect for conditions that genuinely deserve it, and it keeps you sharp. Confidence here does not come from feeling calm. It comes from preparation so thorough that the hard parts are already handled before you take off. The operators who look easy in tough conditions planned for them on the ground, the winds, the airspace, the what-ifs. Their calm is earned before the props spin. Push your edge in controlled steps. Take slightly harder conditions when the stakes are low, and debrief every flight honestly. Confidence in the difficult stuff is built one managed challenge at a time, not by waiting until you feel ready.