Make a short cut. But keep in mind, it is suitable only for those who have the ideal shape of the head and not too large face. With short hair you will look much younger, and even blue tint will not spoil the impression.
If the above two options do not suit you, then try other means. Of course, the effluent should be avoided so as not to destroy the structure of the hair. Yes, and it alone is very dangerous to apply, you can completely ruin the hair. So try to regularly rub into hair castor oil. From this procedure, they grow faster, and the paint is washed off much faster. Do other special masks. Rinse your hair decoction of herbs. Well suited for this chamomile, sage. They will make your hair softer and also remove some of the paint.
If your hair turned blue-black, there will probably have to use a wash or clarification. It is better to carry out such procedures in the cabin, where the master will make a qualified composition and determine the exposure time. But if, nevertheless, want to do it at home, then be very careful. Carefully read the instructions, do not try to keep the clarifier more than recommended, thoroughly wash off the paint to not get into your eyes. After the procedure, be sure to put on your head Balm to help hair to cope with stress.
Please note that after washing or lighten your hair will not be the same smooth tone. Therefore, they have to paint again. Just do not use the paint again, because of which you had to much hardship. And be sure to use a hair mask to quickly restore them after such a stress.