What are your favorite UI tutorials/resources?

I’m trying to improve my UI but feel a bit lost. How did you learn it? Thanks for the help!

Just playing around all ui but I have used unreal engine since 3.

Changing theme colour, increasing folder size from the content browser, using filters, watching some youtube on debugging tools from the ui, and using shortcuts.

Only the latest version ue5.6 feel strange as lot of ui has been changed from the editor viewport.