I had the fortune and grit to build and release something on my own. It took years and a lot of pain. Then came the pain of supporting it in production. I generally regret putting myself through this and I do look back. I do think it is worth trying something, but you need to be careful what exactly you are building. Too many times I got lost in details or spent way too much time on things that were not worth it. Also, giving up sooner when you see it doesn't work can be a good thing.