Congratulations on passing the MS-100! I failed on my first attempt but it was a very spur-of-the-moment kind of attempt. I had only studied for about two weeks and certainly not in earnest like I should have. I have restarted my studies and began taking exams starting from the Fundamentals and working my way up getting most of them in Security and Identity as I want to get the MS365 Admin Expert Certification before the end of the year.
If you are still willing, I would be honored to receive the study materials you used.