Will using a hair straightener every day really damage my hair? I'm worried.

These days, I tend to use a hair straightener almost every day before going out.
At first, I didn't notice any major issues, but as time passed, I started to feel like the ends of my hair were becoming dry and brittle.
Especially, even though my hair looks fine in the morning, there are many days when it looks dry by evening.
Ever since I heard that high temperatures cause severe damage, I find myself worrying about the temperature settings for no reason.
I've heard that you should use a heat protection product together, so I became curious if there is actually a big difference.
My hair looks so frizzy if I don't use a curling iron, so I ended up using it again.
So I find it difficult to strike a balance between styling and hair care.
It is especially stressful on rainy or humid days because my hair comes undone quickly even after using a curling iron.
I'm confused because some people say it's fine if you do treatments consistently, while others say that heat damage eventually accumulates.
I'm also worried that if I don't take good care of it, my hair might get damaged all at once.
I became curious about how everyone takes care of their hair while using hair irons so often.