Boson practice exams a killer

Has anyone else taken the Boson practice exams for 70-410? I thought I was doing well on the labs, etc. I'm practicing using the practice exams that Boson has and finding them quite difficult. I'm wondering if the questions that they give are overkill or I'm just not as ready as I thought that I was. I'm writing mid May and thought going over the questions would get me ready. I'm now wondering if I'm ready or not.
Yes, I've done the labs and read the books, etc.
Yes, I've done the labs and read the books, etc.

Comments
Anderson
"Everything that has a beginning has an end"
All that is secondary to how useful I found them to be. For the 411 I originally used Transcender and was passing with 80-90% when I took the exam and failed big time. I picked the boson exams on sale and immediately scored almost exactly what I had gotten on the actual exam. Some of the Boson questions pointed me to content that I had not seen anywhere else but the exam. They are VERY good and considerably hard but they are one of the best test prep tools out there.
2020 Goals: 70-744, Azure
Completed: MCSA 2012 (01/2016), MCSE: Cloud Platform and Infrastructure (07/2017), MCSA 2017 (09/2017)
Future Goals: CISSP, CCENT
Now I don't feel so bad. I've been going over all the questions (all 240 of them) as much as I can. Hopefully by the time I write I'll have them down pat. Been reading the reasons why I mess up a question to learn the it better and even the harder questions that I get right.
Not writing till May 10th, so hopefully that should give me lots of practice time. Doing a good 3 hours or more a day on the practice tests.
Question format?
The smallest details?
I personally prefer practicing with harder questions, making the exam a breeze. I forget the title of the book / resource I'm currently using, but they're primarily all situational questions and thus far I've been nailing all the questions right (well 3 chapters in, each chapter only has 10 questions).