If you want to learn about Mendix check  out: https://gettingstarted.mendixcloud.com/link/home

There are some interested learning paths in the Academy Section. If you have specific questions about a topic, please let u know.

The pro tip about learning movies:  pasue the video tutorial and try do it by Your own before the instructor :) It’s more efficency then just watching and follow the instructions – it coul help You learn mednix faster. Good luck! 

Also, you can downoad the Company_Expenses app as an example. This helped me in getting a feel for logic.

Did you check the mendix app gallery? It has many different use cases:

https://gallery.mendix.com/