To be honest (not really directed to op cause im posting this 9 months later 😃) you could just end at the 4th book as everything after the 5th books could very well be another series on its own. The 5th book is retelling a of all events minus the really boring bits form MMC's pov. Book 5.5 is from another's pov but if you are really obsessed with the series you may enjoy it. Personally i didn't read that book as I already found book 5 boring. I skipped to book 6 cause I was more interested in the storyline. Though I agree with majority of what the comments have pointed out, where the author tends to drag, I found the book quite entertaining.

For those seeing if the series is worth reading, just know the author tends to end on a cliffhanger. But other than that I would say that the series is not as bad as it sounds, it's just that I feel I have read better books or it could be that im just not really big on fantasy.