I've been dying my hair the lightest blond I can find for about 15 years. I wanted to get back to my original colour a dirty blond or light brown (it's been awhile). So I bought a brown dye and put it on. As it washes out it is looking a little green. Should I dye it the same colour again or what. I want to be able to get to my natural colour without bands of colour around my head, cutting it or looking like a freak. :) Thanks in advance