Avoid excessive heat
Have you ever seen a black girl with jagged hair so horrendous that it made you want schedule an appointment to get your ends clipped? Well, I used to be that girl who inspired you to take better care of your hair. I thought that by having pretty hair meant having heat styled hair. So for years I did that, until (in the back of my head) I found out that while one side went down my back, the other barely passed my shoulder.
All of the excessive heat lead to excessive breakage and I had to cut my hair into a bob to get rid of all of the dead pieces.
How to fix it?
A good way to keep your hair with that straight look is to wrap it. It’d last longer and you won’t have to put the heat on it everyday. But when the time comes to put heat on it, try only using one source of heat on your hair when styling. You want to flat iron it? Then let it air dry (I usually wrap my wet hair, let it air dry a whole day, then the next day, flat iron it). Twist outs aren’t just for natural hair girls. When wet, twist, or braid your hair for a beautiful wavy look. Or wear a high bun. So sleek, so elegant, so not needing of heat.