Love it! Learning by trail and error will never go away - I've been filming for 18 years and I still find mistakes I want to tweak for the next time. It's both encouraging, because there's always ways to improve, but also sometimes frustrating because you think "why haven't I mastered this?" I encourage you to stay in the former and not get frustrated - easier said than done, but realizing that the small tweaks we learn from each shoot is the 1% that helps to make us better!