You have learned a very valuable lesson and now understand why it is never o.k. to plagiarize, cheat or lie. Better to have feelings of shame and remorse, than contempt towards your teacher for uncovering your deception. To quote Sir Walter Scott, giving credit where credit is due, “Oh what a tangled web we weave, When first we practice to deceive!” I think a sincere letter of apology to your teacher that reflects upon your new found wisdom might help you to move on with the resolve to never find yourself in the same situation again.