Breakage! :(

I started my natural journey in January of this year. I never dyed my hair and my last perm was in 2007. So I would say I'm transitioning it to new products and less heat. Now since January everything has been going good but now I'm seeing breakage and it upsetting. I'm unsure what to do. I googled a few things but I wanna now what works.

What do you pros do?