A cripple in medieval world ACIMW

This is the first time I write a novel in English. I’m just a historical nerd wanting to create a beautiful story.
It’ll be great if you guys can tell me about my grammatical mistakes
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This is the story of a modern man reincarnated into a medieval, fictional, and fantasy world.
Although he is a cripple, he has some special power that can help him to develop his land and hammer his legend into history.
I’m inspired by the legendary tale of Ivar the Boneless.
=.= Enjoy!
My discord server: https://discord.gg/wqVVfeDr