Overheating iPhone 5 after throwing it?

I was very stressed out this morning (my roommate was defacing my property as a "joke") and in a moment of anger, I tried to throw my iPhone against my pillow, but I missed and hit the wall. Now it is overheating, losing battery life, and it is continually searching for a cellular signal. Any ideas how to fix it, or do I need to buy a new phone?

Added (1). *By the way, I know throwing the phone was stupid and wrong. I just need to find a solution to the problem at hand.

It has been damaged, may be shorting out internally, could catch fire, and should not be used. You will most likely not be able to get it repaired on guarantee from Apple, since it has been subjected to a severe shock. They will be able to see this.

You have two options: take it to Apple and pay for a replacement unit (about 50% of new price)
Use your home insurance to cover it as an accidental drop.
Oh, and I guess you've learned your lesson:-)

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