I need to straighten my hair for Halloween, it's 3B/3C -ish and believe it or not, I have never straightened it! What is the most efficent way I can do this myself?? Thanks!!
Long 3B spiral curls ( think Felicity and Nicole Kidman back in the day)

My product arsenal: CHS Curl Keeper, Ouidad products, Kerastase Oleo Relax Masque, AG Fast Food Leave-in conditioner, Mop Top Deep Conditioner

Haircut Method: Ouidad