Curling iron troubles, help please and thanks!?

the little wavy part? is because your not pulling the curling iron all the way to the ends of your hair. If you don't pull it all the so you can't see the end anymore it will stick out and bend when you twirl it up. If that makes sense? Then you may not be holding it in your hair long enough. Make sure you spray hairspray in it good and then do what you do and twirl it up. After I do that I let it sit for a little bit and I touch my hair part not the curling iron haha and see if it's warm or not. If your hair isn't warm or hot it won't be curled when you let go. Hope that helps!