All, and I do. After some time has gone, I like to revisit my books simply because even though I put my books through the wringer, there is always something I feel like I can improve. But I make sure to not keep editing my old books but rather focus on writing new ones too. It's all about balance.
I became more confident in my ability to write and publish books. With each book, it's becoming easier to go through the process because I have already done it, so now I know that I am capable of doing it. Hence, overall, I am less anxious and more relaxed. Though, I still get teary-eyed every time I hit publish. It's just that writing is such a long and draining journey and too reach the finish line is exhilarating but also overwhelming.