My biggest takeaway is that I knew more than I realized. I was aware of all of these directors first films, and I've even seen most of them, but I just didn't really put together that "this is the way". It makes total sense though. Reminds me of that quote in A Knight's Tale, "How did the nobles become nobles anyways?… they took it, at the tip of a sword."
My biggest concern is that I won't be able to write anything compelling. I watch a lot of independent films on tubi, and a lot of "first features" on r/filmmakers that are often touted as being ultra low-budget, and many of them suffer writing pitfalls that make them somewhat hard to watch. I love The Puffy Chair, so I can definitely forgive low production value, but that movie has so much soul, and I'm afraid that's what I might not be able to capture.