Welcome @giorgio !
You certainly came to the right place, to get started you can find extensive documentation on Rasa & Rasa X here.
Also, the Rasa Blog is a place where we post articles about the improvements implemented to Rasa, tutorials on different Rasa features, interesting projects built using Rasa and much more!
If you have any questions, don’t hesitate to get in touch with us - here are some tips on asking a great question to speed up the process.
We look forward to having you in our community!