I find it quite amusing that you think anyone can answer that question without knowing the shoe size. Having said that, my colleagues and I are quite surprised that you would even want to change back. Was it not Shakespeare who said:

"doth clothe the foot and keep it safe

among the garbs, a master race"

If you do need to change back, I recommend purchasing a life-size cardboard cutout  of Penelope Cruze and religiously smearing applesauce on her oversized ethnic shnozz for 6 to 7 hours a day.  Apple-cinnamon works best. It worked for me.