I originally had light brown hair... I decided I wanted to go dark brown. The box I picked was dark brown aburn... my hair is dark Red... I don't like it and want to change it. This is the first time I have dyed my hair in a couple of years. I used permanent hair color by Loreal... can I try to re do it with in a week and if so what shade should I go for to correct it? HELP I have family photos in a week and I don't have any beatuy shops around that I trust. (I am military in germany)