u/Hopeful-Pen-9814

im totally new to bleaching shirts, and I have a few questions:

-is it absolutely necessary to soak your shirt in hydrogen peroxide after dying?

-what is the best water:bleach ratio for light coloured bleach designs?

-how do I make stencils (im going to make the American Idiot album cover)

-do I need a mask?

any help is v much appreciated!