How do i bleach my dark hair?

You should dye it gradually lighter over time. For instance if your hair is dark brown dye it to light brown/dirty blonde, then wait at least 2 weeks until you dye it again.. then you should try bleaching it. You should be using shampoos that help repair color treated hair and that make your hair healthier. Also when you do bleach it apply heat from a blow dryer so your hair gets as light as possible and it shouldn't turn orange if you apply heat.. Hope this helps xoxox