Does anybody else’s hair do this!?

Am

My hair literally NEVER stays nice... my hair is thick, and naturally curly, however, although it doesn’t sound that bad, if heat so much as touches it in any way, the ends dry out and split and get gross and I can never grow my hair out long and have it styled how I want.. it’s so annoying! I use heat protection, I use low heat enough to straighten it quickly but not enough heat to fry it. I hydrate my ends with Rose oil and natural products and no matter what, my hair just WONT stay healthy. How do y’all style your hair every day without it dying? Cause people do it all of the time and they’re hair is gorgeous. Any natural pills to help my hair stay stronger? Does anybody know the reasons for this. Help would be great appreciated...