Maya,
After looking at your hair photo's (nice job BTW) Your hair does not look unusually dry and damaged.
Let me first explain the difference between straight and curly/ wavy hair.
Straight hairs feels and looks much different. Straight hair, as any ~flat surface~ reflects the light and looks very shiny. also feels MUCH softer than curly hair. Curly hair by nature is MUCH dryer in both texture and to the touch. It must be conditioned more often as well. And more affected by the elements. You seem to have a combination of both. Look how shiny your flat/smooth soft fringe is, compared to the curlier/wavy parts of your hair.
This is just the nature of curly hair. It lacks the shine and softness/ or looking soft as does straight hair because light does not reflect off a curly/wavy surface.
Your hair isn't really super curly,but you could enhance that with a number of different products, but I think what you are feeling and seeing the~ 2 distinct different textures~ you have. Not all that unusual. Most people do have a combination of both to varying degrees
I really like is natural/not blown. It is a nice change.
I don't know if that helps at all, just know that you can always help the dryness by conditioning, but some of it is just the nature of wavy hair.
I personally don't recommend the conditioner as shampoo theory..It may work for some(although it baffles me completely) But you will end up a greasy mess.