I can not stress the importance of these two YouTube channels enough! They are both fantastically knowledgeable and easy to digest. At this point it’s really about “seat time” sitting and learning. Most aspects of aviation can be dense, pull up a comfy chair. 
And as always hats off to these two content creators in particular. They have truly taught me everything I know, and I wouldn’t get the enjoyment out of this Simulator if it weren’t for their expertise!