Please do a how too! I'm pretty awful at squirrel prep also
I prep squirrels and rabbits both in the same manner:
-Pinch the skin at the base of the neck and cut through it to make a hole large enough to get a couple of fingers under the skin.
-Grasp the head in one hand and work a finger or 2 under the skin; pull the skin off whole like pulling off a glove and discard or set asside for later use.
-Cut of the head, tail, and all 4 feet and discard.
-Slit the belly open from the rib cage to the anus (be careful to only cut the flesh and not the organs)
-Reach inside and pull out all the guts and discard.
-Remove the anus and genitals.
-All that's left is to quarter the now cleaned carcass (rabbits may need to be cut smaller than quarters) and rinse thouroughly.