My hair is 70% grey and I'm not ready to embrace it. My normal colour is medium brown but I'd over dyed it with box dye. Recent visit to hairdresser to talk about how to help with the grey roots and transition slowly. Ended up having a bleach bath with some highlights and hair significantly lightened. Now I feel it's just too 'red' can I do anything at home to help?! I do prefer it as it was so dark with awful dark ends/banding but I just can't get used to the warmth. Thx