I used to have this problem and then maybe ~8 years ago, I solved it, and word of warning, it can go the opposite way. When I finished my last project I started

I used to have this problem and then maybe ~8 years ago, I solved it, and word of warning, it can go the opposite way. When I finished my last project I started work on a new one, which I predicted would only take a few months. Common mistake I know, but even looking back, technically speaking I wasn't wrong by much. It is a simple project on a technical level, but not so much on a design level (by that I mean game design, its a game I was working on). 3 years later, I realised it was a fundamentally flawed idea. 6 years later, now, I'm still working on it, despite knowing that. Very recently, for the first time in that 6 years, I've been successful at pulling myself away onto other projects, but that main one still sits there and I will get back to it, whether I want to or not. All thats not to say that finishing things isn't important, just that it can go both ways. Sadly I don't have any advice to stop others from falling into the same trap as I did other than maybe being aware of that. EDIT: To be clear, this isn't a "just ship it" situation. I don't have anything to ship other than mismatched ill-formed prototypes, and I do mean prototypes. Maybe one day I'll just polish up one of those prototypes and ship it, that's been my thought process lately