In a teaching game with a (significantly) stronger player, it will/can become clear what your weak points are. Asking your opponent which books to study to improve on these weak points, will help you to get better.
And of course play a lot of games and have fun in playing go.
Sure but that’s not obvious at all: how do you mimic?
Even with comments by the stronger, it’s not that granted at all.
It’s easy to be over optimistic about what a beginner may understand.
Maybe a specific tactical aspect could enlight the difficulty. Let’s take ladders (Shichos). These are important to anticipate, it’s quite fundamental when fighting occurs. You can explain how it works especially when it occurs in a game (should help to remember as a personal experience). Now how long it will take to be part of a beginner tools? How long before first he will avoid to push out from it (and making the result even worse)? Then to play a ladder breaker? Then to not be in the shape to be caught? Then to build himself that shape? I mean get the picture with someone who cannot yet anticipate a double atari.
I just looked through a couple of your games, I think you need to learn some opening theory. No need to go too crazy and learn all the lines but simple stuff like corner, sides, middle and basic openings. OGS has the joseki section and you can just start clicking there.
In some of your games you’re going into the middle on the first move, which is not good. The good part is that such a glaring problem is easily fixable. Within 30 mins of studying you could improve drastically by just looking at basic openings.
Urgent is bigger as big. Ensure first that stones have ways to live easely. Or to get under attack for your opponent. Then you can look at the biggest and that’s where you have to consider the whole board, not just the place you were busy.
I think the Speed Baduk series is much better (more didactic, systematic, and more problems):
The problems books of Nie Weiping’s Go Academy are also good although they do not have an answer booklet and are in Chinese (although you understand most from the figures even if you do not know Chinese): https://www.aliexpress.com/item/1005004623372598.html