Even if your hair is difficult, and the hairstyle falls, You don't have to do permanent waved.
We propose, That you would turn them on the Velcro rollers (They do not destroy hair structures).
Wash, Divide the slightly dried hair into thin strands and turn each of them into a thick roller. Dry them with a dryer, and then wait 15-20 minute, Until the hair "cool" (If they are very difficult, Hold the rollers longer).
After removing the rollers, you will gently comb your hair, arranging a selected hairstyle (You can stick it slightly).
Finally, fix the curls with varnish.