The older I get, the slower I feel. Projects seem to need more planning and I wish I was more spontaneous, but I realize documentation is important, or testing

The older I get, the slower I feel. Projects seem to need more planning and I wish I was more spontaneous, but I realize documentation is important, or testing needs to be done, or branding should be polished up. Syntax is a small part of software development, but it's everywhere. I need to be productive, and I just don't want to be on this hamster wheel when I'm just trying to get something shipped to developers and users, which is hard enough on its own.