Rpgnoly I'd recommend starting with Sarah's "Beginner's Guide" and Stumpy's "How to Make a Game" tutorial series. They're a great place to begin, as it includes an overview of the editor and covers things like setting up your first project, making and animating models, building a map, etc.
Sarah's "Beginner's Guide to RPG in a Box":
Stumpy's "How to Make a Game" tutorial series:
Once you're familiar with the basics, I'd recommend checking out Slayer's YouTube channel. He covers a wide range of topics and goes more in-depth into specific features:
https://www.youtube.com/@SlayersRIABTutorials
Hopefully that helps! 🙂