Hi! Thanks for your reply, now I want to answer your questions:
Studies:
1) How many hours do you typically study each week?
--> I studied more or less every day 4-7 hours for ~10 weeks, sometimes less, sometimes more, and sometimes did a break for a day.
2) Have you used any other study materials besides the books that you listed?
--> No, after finishing the 2 books I started to do OG2020 problems and started an
Error Log from these questions. Meanwhile I refreshed some chapters of the books. Besides that I tried some apps but didnt really continue that. I also did basic math every second day (addition, subtraction, multiplication and division numbers to 150) to get faster and because I struggled with time in these questions.
3) Did you take your practice CATs/mocks in the same format as the current At-home GMAT (re: use an online notepad - not handheld notes, take the sections Q/V/IR in that order with no 'break' until after the Verbal section, etc.)?
--> I studied and am studying for the normal GMAT as I hope testcenters will be opened next week in Germany.
Goals:
4) Is your overall goal score 600 or something else?
--> I just need 600. More would make it safer and give me a better feeling but 600 is enough!
5) When are you planning to apply to Business School and what Schools are you planning to apply to?
--> Deadline is 31th of May 2020 and I want to apply to University of Mannheim (Germany).