I would just make an attempt to finger comb your hair after rinsing it and conditioning it. Then when your blowdrying your hair, make an attempt to kinda blow out the back side a little more ( or underside, that is where my hair gets matted and unruly, it is also quite a bit darker ) Dont dry it all the way, when its still damp, run moose or styling lotion thru it and scrunch the top layers and let it air dry.
On fixing wavy hair by: Anonymous
This sounds so old school but it works, at least for me--I use the largest velcro rollers I can find. Huge ones for the sides, medium huge for the back. I get a sleek, full look that holds all day, without damaging my hair. I do this when my hair is dry, giving it an hour to set before I have to leave. Works like a charm!!
maybe it's your flat iron by: Anonymous
I had a very similar problem to this for many years. The only way I could straiten my hair was by frying it. I eventually at the advice of a friend invested in a "Chi" brand flat iron. They are pricy I think i got mine for $80. However the result is worth it. It doesn't fry my hair, and flat iron's it about twice as fast. My hair can be healthy and straight now.