How can I get my hair to..?

Do you mean it's broken looking at the edges? if so you just need to cut it. unfortunately once there's too much damage the only solution is to trim. not sure if you're using products or straightening but thats' also bad in the long run. to get the best condition for any hair is to go natural, no heat, no harsh chemicals, colourants, etc, and of course all the other stuff like good diet, no smoking, minimum drinking,exercise, etc.good luck