From Dark Hair to Blonde Hair in One Day

It's kind of sad as I wont be able to go back blonde again after this as my hair is way too damaged. I will pretty much be spending most of the weekend with treatments in my hair. I did however managed to go from dark to blonder in one day. It was actually easy as the colour I had in my hair was just a pigment and there was bleach sitting underneath it. I just used a 30 creme developer and