If you've been using Nizoral everyday, then yes, it's going to leave your hair dry and straw-like. Nizoral is a reasonably harsh product. The shampoo is designed to use maximum twice weekly, and use of the product is supposed to be discontinued after eight weeks.
Nizoral isn't designed to be used as a hair loss shampoo, it's for treating dandruff. You'll need to use either: Lipogaine Big 3, Regenepure DR, or Revita. Those three shampoos are designed for hair loss purposes and all of them contain Ketoconazole, which is the active ingredient found in Nizoral shampoo to treat dandruff which is also used to help fight Androgenetic Alopecia.