I passed LPIC 101!

Hello, I'm incompetent.
I passed LPIC-101.
However, since I haven't taken LPIC-102 yet, I haven't actually obtained LPIC-1.
Study Period
I started around December 29th, about a month ago, and tried Ping-t's mock exam without studying, and despaired with about 30 points.
As someone who has built a home server and set up a GNU/Linux environment, it was a huge shock.

Here's the proof.
What Was Difficult
Since RHEL, rpm, yum, and systemd-related questions are the main focus, as someone who only briefly touched systemd, I struggled because the options are quite different from other init systems.
Regarding apt, I had some experience with it on Devuan, so I could manage to some extent, but other package systems also appeared mixed in, so I sometimes made mistakes due to complete errors.
For the rest, questions like 'Choose X from Y' appeared, so I had to memorize all the corresponding patterns, and I had to answer them while thinking, 'I never use this in daily life!' Well, I guess I was still immature enough to think that way...
Study Period and Materials Used
I used the free resources on Ping-T and clicked around on the 'LPIC Strongest Question Collection' website in my free time.
Also, I regularly used my GNU/Linux environment at home and wrote shell scripts from time to time, so I think that helped with some questions.
Below is my recent history. The 'free practice' sessions were for reviewing mistakes from mock exams, so they aren't very reliable, but the mock exam scores might be useful as a reference.

The Ping-T practice I did on the train right before the exam suddenly resulted in a desperate score, so I thought 'It's over! (\(^o^)/)', but it turned out alright.
Test results below

I feel like I managed it because of my experience building PCs and just went with the flow.
Actually, I don't think people who just use GNU/Linux daily are usually aware of things like BIOS or file formats, so when installing an OS, they might vaguely think 'Windows uses NTFS~...', 'GNU/Linux mainly has extX options, and there's also Btrfs~', 'USB uses FAT32 or exFAT' – that kind of image is something only those who specifically pay attention to it would notice.
All in all, I learned many things I didn't know, and it was a good experience.
By the way, I booked the exam around 11 PM the day before and headed there. I really overslept, lost my wallet in my room, and sprinted to the exam venue. That's how socially inept I am.
End.