Using First Person When Your Narrator Is A Jerk

I’m three chapters and over three thousand words into writing my WIP.  I reached a point yesterday where I stared at a passage and just didn’t know how I was going to write it in third person singular and get the true nuances of what my main character was feeling or what he was thinking

Narrator No-No

In the many years of writing fiction, I have discovered about twenty ways to narrate a story, most of them huge mistakes for the flow of the story I am trying to tell.  Since landing an agent, I found out that there are also some narrator types or mistakes that are off-putting to modern readers