I have been dying my hair black for about 3 years my hair is natrually light brown I want a change I now want my hair blonde what should I do to get rid of this black?

Go get a color remover from sallys! Don't bleach it it doesn't work unless it is a very strong bleach and it will damage your hair. The color striping will pull the black out condition it really well afterwards, and you will have to wait a little bit to dye it again but I've tried both ways the first time the color stripping then went back to blonde a year later I wanted black again and I was told to use bleach and the bleach gave me blone roots with black hair so... I wouldn't suggest beaching to anyone

I recommend getting it dyed professionally. Bleaching black hair can make it look red or orange. It may not look like the exact color you want it to be if you are going from very dark to very light. It's better to have someone who it skilled in dying hair to do it for you