How did you go from a tool you made for yourself to an all out SaaS product?

I'm a self taught Pythoner and the past 6 months I've been working on a tool that uses AI to analyse a podcast's emotions and gives suggestions to a podcaster.

I have been using it to generate and share reports for my clients.

But after working on it a while I realized a lot of what I've built would scale pretty easily.

So I really wanted to know how people made the step from using you're own diy code to implementing a SaaS product.

Any feedback on the actual thing I built would be awesome, I'm really looking for help to work out how to monetize it beyond just running it myself.

The report I've built is here: https://podcast-personality-dashboard.herokuapp.com/

I built it using Python and the Dash framework and it is currently hosted on heroku.

Thanks!