Best way to master Wrike

Hi, I'm in love with Wrike and I want to master the program. I work in a very small team though and I don't have anyone to learn from. There are a lot of videos and I find I can pick up useful information along the way, but I'm hoping someone knows of a professional, comprehensive course of not only how to use wrike, but best practices and tips and tricks along the way. You know, stuff I'd learn if I was to work with an experienced wrike user, something I will not get the chance to do. For the record, I am not looking for a tutorial or video I've see plenty of those. I'm looking for  a book, or a class that's fully structured. Paid of course. Thanks!