I think so, but even things like focusing too much on a perfect design or well-tested system can bog you down on a side project if you actually want to finish i

I think so, but even things like focusing too much on a perfect design or well-tested system can bog you down on a side project if you actually want to finish it. I know for me I used to spend way too much time trying to organize my code and folders just right. If I learned a new design technique, I'd incorporate it into the project. I was obsessed with doing things right, which I think is fine if my goal was to learn, which it partly was. However, I also wanted to ship! Over time I relaxed my requirements on perfect design and testing and was able to ship things.