my hair is naturally a darkish brown, but i've wanted to dye it platinum blonde for quite some time. i've been dying my hair (usually just different shades of brown) for years. when i went to a hair salon to ask about them bleaching my hair, the man said that they'd first have to strip it of all the dye and then do a ton of dying/bleaching processes, which would cost a ton of money. i've heard of people just bleaching their hair themselves, which i don't want to do..but it makes me wonder..is this man right? is that the only way i can bleach my hair?