I also think that playing this novel at night or in the morning is the best time! In fact, in the full version I'll remove the pronoun system altogether, as it turns out they are not useful at all, haha! Again, I'm sorry for the grammatical errors, I really have no idea how to fix them...
Oh, no worries! Really, they're not that bad. Something I've seen some creators do is write all the dialogue in a Google Doc or Word before adding it to the script, since those programs can help you check for errors. But, grammar mistakes or not, you've still created an amazing, horrifying work of art. A few odd sentences isn't going to change that. Good luck with the rest of development!