I'm in the same boat - I've tried many things, and most have failed. I currently have a side project with 1k users making no money, and I'm going to try monetise it - but I expect it to most likely fail. And I'm okay with it.
There's joy in being creative, making, growing, marketing, trying, learning. I can't remember where I read it, but once a founder makes their money, they often get lost in life. The common advice is then: "now do it again but this time enjoy the journey".
> They make it seem like building a successful startup is easy [...] [but] It's fucking hard and it takes more than just a positive attitude to make it.
Welcome to startups! Another great quote I read was "Bam! Overnight success story! It only took 7.5 years" [2].
[1] https://twitter.com/levelsio/status/1457315274466594817 [2] https://siliconvict.com/articles/5-lessons-starting-a-500m-a...