I had this crazy idea I would go it alone and that if I would just keep working on it until it was a success regardless of how long it took. I spent 3 years on programming it to get it the way I wanted it, starting development in 2001... I still have it set up and one day I plan to convert the design into Bootstrap and try again but going after niches this time. But at this point I am not stable enough financially to work on it the way I want to just getting it all into Bootstrap would take months.
I have a repo I hack on from time to time that purposely isn't in a domain I would ever try to sell as a commercial product. I sort of use it as a way to build up to eventually having a full blown commercial grade piece of software that I can then just pivot the domain into one I want to compete in and launch a product again. By that time it really would be a good few years working on it. Software really is a team sport. It's crazy how much effort it is to go it alone.
I tried and didn't succeed at a product where I spent my savings too. It's just the reality of a lot of startups. It's unsexy, but it's the reality.