How do I handle complex high-expectation trips without getting overwhelmed?

You can plan most trips, which means the craft is already in your hands. What overwhelms you is the top tier: the intricate itinerary for the client who expects perfection, where the stakes and the moving parts both run high. Feeling the weight of those is not a shortcoming. It is a correct read of how much they genuinely ask. The overwhelm usually comes from carrying the whole trip and the client's expectations in your mind at the same time. But a complex trip is just many simple decisions in sequence, and high expectations are managed by communication, not by silent perfection. You do not have to be flawless. You have to be organized and honest about what is settled and what is still moving. Break the next big trip into segments and finish one completely before opening the next, so you are never holding all of it at once. And set expectations early with the client, telling them your process, so their hopes ride alongside your plan instead of hanging over it. Handled in pieces, even the hardest trip becomes something you can carry.