Agreed. If the overload of study is actually required by the TR school or national CAA, it's a great pity.
There's a lot of stuff that actually will need learning and filling the brain storage with minutiae like this will definitely cause more harm than good. Not the OP's fault, at this stage he absolutely cannot recognize the importance of different bits of information.
With much good success, get a copy of the latest (new SOP) edition FCTM
and print it. No, the iPad won't do because that's where the FCOM is and QRH ;-). Pre-studying that will not do harm and will lead you to the important parts of the FCOM.
Another nice book to get oriented is here
https://www.smartcockpit.com/aircraf...or_Pilots.html, a bit aged but the scope is perfect before the course actually starts. Enjoy!