I am prepared to chop all my hair off because it hasn't curled properly in about 5 months. I am near tears just looking in the mirror. Maybe it's my cut. What are shelves? My hair is not curling AT ALL in the back and it's longer than the rest, so should I get it cut shorter than the rest? The hair underneath in the back is REALLY longer than the rest. It just isn't curling. I don't know if I should cut it or if I should just start straightening it with my Chi everyday. Anyway... what are shelves?