I have VERY thick wavy hair, and recently got bangs on for a switch.
Well, wavy bangs make me look crazy, flipping up and sticking out in all the wrong directions like I'm hiding a conversation scar or just got released from a "nervous" hospital. .SOLUTION:
After washing your hair, take a thick paper towel (VIVA brand works best) and roll (just your bangs) around the towel and tie it closed, (like the old way of rag tied curls). Let your bangs air dry while watching TV before beddie bye. The towel absorbs the moisture, and speeds things along. When you unroll it, (Don't brush it out yet, wait until morning), and then you'll have a somewhat tight and silky turned under bang that will relax and brush out neatly.
No curling iron needed, no flat iron, no drying hair with blow dryer.
Don't give up, just train your bangs with a little love and a little papertowel.