How do I get past feeling intimidated by the technical prep work?

The technical side of preparation is exacting, and feeling intimidated by it is a sign you take it seriously, not a sign you cannot do it. This is careful, skilled work, and it deserves respect. Everyone who does it well now once stood where you are, unsure their hands were steady enough. The intimidation fades not by feeling braver but by the work becoming familiar through doing it. What makes it feel large is that you are seeing the whole craft at once, all the skill you do not yet have. But no one learns it all at once. It is a set of specific techniques, each learnable on its own, built up slowly under the eye of someone more experienced. You are not expected to master the whole thing today. You are expected to learn one piece, then the next, until your hands know what to do without your fear getting in the way. Focus on one technique and practice it until it stops feeling foreign. Ask the experienced people around you to show you and to check your work. Their guidance will shrink the intimidation faster than anything. Each skill you truly own takes a piece of the fear with it. Give this the patience it deserves. Competence is built one careful step at a time, and you are already on the first one.