You know what, I have this exact same problem with the hair up front and with my canopy. The only thing that has worked well is getting my canopy sopping wet, scrunch in Kinky Curly Curling custard
and diffuse and scrunch the hair toward my scalp like nobody's business-a little work but my hair looks fab after this..
Now the very front..hmmm..I THOUGHT I had heat damage too because I straightened my hair my entire 7 month transition. But even after almost two years of growth (from 1 in to 11 inches) this section was still wavy even on the best day. I recently cut this section to make a bang and although I very rarely use any heat on my hair this part still looks like a wild puff ball. Anywho..my fix is to pin the hair back (usually with a black bobby pin) and take a little condish/oil/gel mixture and make about 5 coils. Diffuse this section a bit until set and let air dry for as long as possible then unravel the coils. This gives me cute little coils/curls every time.
**Disclaimer** I use a leave-in with a heat protectant whenever I diffuse. Also, I only do this with my WNGs which I limit to 1/week styling HTH!