How do i shrink preshrunk cotton? I love this shirt but it wont shrink, its black and had...

I love this shirt but it wont shrink, its black and had a imitation on the front. i really want it to shrink because i wear small and its large. please aid!!
I own see the H2O cleaning mop on...
Answers:    BOIL it.
Is within an life or dirt friendly mode...
Wash in hot hose and dry in a dryer on soaring.

Edit:
If Washing in hot dampen and drying on high did not work I enjoy no other thoughts.
Good Luck