Pertaining to EJET:
Just ask yourself am I 100% committed to this? If your answer is no, then why are you even bothering? Yes, guys have failed out of the program. Yes, guys have failed and/or struggled with various other assets of the program. In my years of experience the ones who were not there mentally or carrying their share of the group study are going to fail somewhere early. But no, things are not super intense at training.
Then again we are utilizing different facilities (YYZ,DFW and PHX) so I cannot speak for the updates. You'll have time to relax I believe, but my advice is to get all the materials in advance. Cover it all, flash cards, CFM, GOM, limitations, etc. minimize the cramming. You should have plenty of time to do those things you list.
-rspct