Can I ask what curl type you have?

I'm a 3A/3B and have been transitioning from the Yuko hair straightening for a year (currently working with two textures as I don't want to 'big chop').

Anyway, what I've found worked best for me at first, in regards to dryness and breakage were:

Getting rid of my comb. Even my wide-tooth. I threw that baby out and haven't looked back. Instead I finger-detangle and I can't begin to tell you how much better my hair looks. I lose a quarter of the hair I used to and have ZERO split ends. For me, this is a miracle as, like you, I'd always have split ends, even straight after a hair cut.

I also eliminated heat on my hair completely and instead went for protective hairstyles (try plaits or twist outs etc.. depending on your hair type).

I also cut out sulfates and went for a sulfate-free shampoo (Shea Moisture Curl & Shine).

And I found a REALLY big help to be pre-pooing. Slather coconut oil in your hair (and finger-detangle, if you wish) and leave it on for a few hours (or overnight is best). Then wash out with your shampoo and condition as normal (and finger-dentangle when your conditioner is in, if you want). This pretty much eliminated my dryness.

I also do a deep condition once per week, which has worked wonders.

So, yeah maybe some of the above can work for you as well?