Ok, Author here ... Some things you should know.
Firstly, if you are here for a Self-Insert harem with an Overpowered main character, I highly doubt this would be a Self-Insert, there won't be much of a Harem, (I might give the main character a love life, though) and... Regarding being overpowered... I plan to have him work for his power instead of simply having it for the sake of having it, and even then, I'm not sure if he would be "Overpowered". I won't go into details over it because of spoilers, but I plan to have everything be a struggle for him, even once he reaches "Op" status. I also plan for it to be a slow paced story.
Anyways, if you're looking for a Self-Insert Overpowered story, this might not be up your alley... Well, this story might not be up anyone's alley. I'd love to say this is a great story, but I'm the one writing it and posting it here, so of course I think it will be good. For all I know, everyone else will think it belongs in the toilet.
Something else to note... I have a rather strange writing style. Especially with character dialogue. It may not be obvious within the first 5 or so chapters, but I tend to put A LOT of effort into painting a picture. As for why it's not obvious in the beginning... I simply don't like writing the start of a story. The start is my least favorite part. As for character dialogue... Here are some examples.
Cashew: If the character is saying it out loud so other characters can hear it, it will be formatted like this.
"While if it's the characters inner monologue that only he or she can here, then it will be formatted something like this." Cashew thought to himself.
It's a strange way to format dialogue, I know, but it's my preference and I hope any potential readers I get are willing to put up with it.
Finally, final thing for this part. Once the first 5 or so chapters are uploaded (+ the auxiliary,) I'll spend some time with world building while I let this sit for a little bit. I already have this world's entire lore thought out, I just plan to take some time to officially write it out instead of it only existing in my head. It shouldn't take long, maybe a week or so depending on how distracted I get. I also plan to add 3 more auxiliary chapters, 1 for cities and areas the main character visits throughout the story, 1 for items he obtains, and 1 more with a short biography for each character he meets. (Such as where they were born, their career and how they were raised, for example.) as for why I plan to go into details on the worlds lore, i think it will be easier to write a story around an already existing world with its own history instead of making it up on the spot. It will also be easier to remain consistent.
One final thing which, thinking about it, this should probably be at the top Instead of the bottom, but im not gonna hold back with certain themes and aspects of the world. So if you're planning to read this story with your parents, grandparents, and little siblings, I suggest you reconsider. An example... Is anyone familiar with how the Goblins from "Goblin Slayer" are? Well, the Goblins in my story are more or less the same. I'd argue with this even being a Dark Fantasy story, which is why I have it the "17 and up" rating. I don't wanna hold back. So if Dark Fantasy isn't something you like, then I'd avoid this story.
Edit: ok, the paragraph about me taking a break to do some world building after 5 or so chapters are uploaded, you can ignore that entire paragraph. I was gonna make this story video game like, with levels and Hit points and whatnot, but I decided against it and even trashed 3 different chapters. Since I'm on the topic of Chapters, I plan for each chapter to be between 1,900 and 2,000 words. I hope that's not too short. You should also know that I suck with names, so the title "Mistake Simulator" might be misleading. Feel free to make name suggestions as well as correct my spelling and grammar.
Edit 2: ok, reading all the rules, I don't think I'd violate them,but now I'm self conscious about whether or not I do end up breaking them... So this may take longer to write while thinking harder about whether or not something qualifies as breaking in of the rules. Such as the violence one.