When I dyed my hair dark to cover grey, it was shiny and sleek. Now I put a blond dye over the whites which works well and looks like natural highlights. The blond just adds colour, doesn't bleach it. Now though, my hair is coarse and wiry and never ever looks or feels sleek. Is there any way I can change this? It feels like totally new hair, as if I've got someone else's hair and I don't know what to do with it