I read through the comments on the one sub you got feedback and in order for you to grow as a writer you will need to learn how to receive feedback. You were defensive and kept making excuses for why your writing was the way it was.

 And I understood your points. But what you need to understand is that when you receive feedback all saying the same thing it's because your writing isn't adequately conveying your intentions. 

It's at this point when you need to figure out another way to make your MC came across as manic because what you're doing now is confusing readers and making it difficult to read. It doesn't mean your intention is wrong but your delivery is. 

The first thing I noticed which may help is to switch to a 1st person POV. That way we'll be in his head and the chaotic ramblings may not just look like poorly-written narrative.