My hair used to curl quite a bit around the edges when it got long enough, but years of brushing it straight every day seems to have changed that. I heard if you shave yourself bald your hair will grow back differently.
funny thing... someone I know , kinda reasents her long straight hair because she cannot style it. braiding and hair clips are impossible because it slips right through...the hairstylist even used the chemicals used for perming,(and a lot of hairspray) that was the only time it held a do. and it didn't even last
ironic...
I think your problem is the volume of your hair not the texture. after all it's not even the kinky type which is really unruly