I've had blonde hair (colored) for the last 20 years. I tried a new colorist, I asked her to make my hair a shade darker then what I usually have and to add highlights. Results, a full head of white hair. I freaked out and returned the following night, only for her to add a color over the white hair, Now I have a muddy look, hair color that is darker then my natural hair color. I'm using a harsh shampoo to try and pull the dark color off the white color. What should I do??