In this period of time, have you used products with silicone? I had an issue with my hair similar to yours. My hair was just super dry. It was just plain nasty. I started all over. I washed with a light sulfate shampoo, followed by a moisturizing conditioner. I left it in for 3 mins. Then dried it with a towel, put a light leave in. I put it in two braids. I did this for about 2 weeks. I didn't put any styling product in it. The goal was to let my hair rest from styling products and the elements. Maybe your hair just needs a rest.
I hope this helps a little