My hair wont take blonde color evenly?

I recently went from brown to blonde so you can imagine how fried my hair is. I've done a color remover, bleached it, used a toner and dyed it. Yet, no matter what I do it won't be an even color all over. My roots are white, my ends are platinum, and the middle is gold. I don't want to keep dying it without knowing what to do. Someone help!