How can I fix this problem?

When I was younger I wore my hair up everyday cause I didn't want to straighten it and all the stuff. So now that I do straighten and do other things to my hair its really like frizzy looking at the top. I asked my mom about it and she said it look like breakage and the hairs are trying to grow out and I've tried EVERYTHING to get them to go down but nothing works. Is there anything that can fix this? Thanks!