how can i fix my fridge?

My fridge is about 2 feet tall, and has a small freezer compartment. The area all around the freezer compartment got frosted up so i was trying to defrost it and tried to chisel the ice off using a knife. But i pierced the side of the freezer compartment with the knife and a lot of cold gas sprayed out. I've tried using duct tape, but the frideg just ends up getting hotter. Are there any home made sealants, or anything i can do to fix my fridge?