Crystal

The goal here was to create a map that is as difficult as possible, but still PASSABLE.

Well, you have achieved this goal!

Personally, I started breaking through the defenses around the starting Castle on the 1st week.

Interesting, how?

I thought it wouldn't be a problem to skip a turn 7 times if I needed to gather troops... How can pressing a button 7 times be stressful?

Well, firstly, it's not 7 times, but more (for most players who don't want to lose their entire army in one go)! And secondly, it's stressful to sit in one place and do nothing (or rather, just build one thing). By the way, today I launched the map and on the 4th day I was convinced of the correctness of Ta Kotoraya and Dirty Player. Only a person with a lot of patience and a love for endless battles will be able to complete such a map!
I hope you can create other maps that are more "friendly" to players.