I'm sorry for talking so much. If you just want to know about ey and your future development, I can only say that I don't know you, and I don't know what expectations you have for your own development. Maybe you should ask yourself this question? But what I can tell you is that there are too many resources here. How to make good use of them and improve yourself depends entirely on yourself.
PS, personally, if it is not for academic research, you don't need to study for a master's degree for the time being, how much of the things in the book are really useful? At least I gave up a very good master's offer and applied for the big four, and then I entered the most wanted ey with peace of mind. I hope I can help you. .