What features in PhpStorm should be mastered first of all?

Question

phpstorm

Hello.
I have been writing in Notepad++ for many years now, and in general I don’t see any particular reason to change my usual notepad.
However, I installed PhpStorm today - I want to feel what so much talk about.
What should you pay attention to first of all? What tool to master in order to feel the advantages of this platform?
I write now mainly in Laravel + Bootstrap 4 + jQuery.
What do you advise? Where to start learning PhpStorm? What to continue?
Thank you.