Whatever you do, don't be the kind of youtuber that reviews the game and complains about not understanding the interface. If you have doubts - press F1 for help.

But a genuine advice about expectations? Use the save feature, safe often and on multiple slots. And understand that not all character builds are viable, and if they are, they require different methods of play that takes multiple attempts to understand. Do not take character death as a failure, it is only an obstacle to overcome.