I’ve been working on a hobby project for about 6 years, and early on I got very excited about productizing it. It led me down some interesting paths and really made me think about overall BOM cost, designing for assembly, ease of use, etc. It also revealed some weaknesses for me, as I kept making decisions based on something I was sure I could figure out, rather than what I actually knew how to do.
Eventually I switched some things up and it got much easier.