I have recently dyed my hair black and I want to go back to my natural hair color which is blonde and I was just wondering what would be the best way to do that with out having it done by professionals

In order to go from black to blonde, you would have to bleach your hair and then apply a blonde toner. Anything other than that will result in a brassy shade. Hair bleaching is a difficult process and should only be attempted by professionals. To avoid a hair disaster, you might want to consider doing it professionally.