I'd say between SL & APL. For the longest time I had no idea how to care for my hair. I was relaxed & coloring my hair. I can't blame chemical processing b/c it was really my own ignorance about hair care that kept me from achieving healthy hair. I'd relax the entire length of my hair, bleach it, use a ton of heat, then wonder why I could get my hair to touch my shoulders. I started getting fed up because I believed I could have long hair if I really wanted it. I started reading about hair care, stretching relaxers, abandoned heat, eased up on the coloring, & eventually just gave up relaxing completely because I preferred wearing my hair natural.
Anyway, my hair is about 6 inches now. I'm growing it out since I BC'd last year in May. Looking forward to a lifetime of longer, stronger hair.