I've just dyed some of my hair blond. It's gone a bit orange so I might do it again. What is the best stuff to use over hair that's already been bleached to make it lighter?
Rather that trying to do your own hair again, I would go to a hairdresser for advice before you make a bad job worse!! I wouldn't try to overdye your hair, it could react with the present dye, and who knows what colour it will turn!!!!
Good Luck!! Remember your hair is your crowning glory!!