Large Damaged Section- Don't know what to do
So, I've spent the past however many years taking the best care of my hair that I could. No heat styling, lots of moisture, no harsh brushing, no ponytails(just lose dutch braids), no products with protien, but some how this entire section from my crown is damaged from root to tip. I don't know how it happened, but I also don't know what to do about it.
I have extremely long hair and all but that one section is perfectly healthy. I can really cut enough of it off to make a difference, but it's damaged almost all the way to the roots and I'm really at a loss. I can hide it well enough in the meantime with some cg friendly pomeade, but I'd really like to find a way to fix it.
I know protein masks can help minimally but my hair as a general rule hates protein.
I'm really just beside myself on what to do about it. I would love any suggestions you guys might have.