my iphone 4s has been trying to reset for hours, how do i fix it?

Mason, are trying to do this through the air (WiFI) or through iTunes on your computer? If you are trying the WiFi route, I would stop the reset, connect your phone to your computer and go through iTunes. The reset should go smoother there.

Try to get your phone into recovery mode the directions are in this link: If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support-AJ

You don't need the power button for recovery mode (assuming it's already off) , only the home button. Regardless, it sounds like you need to make a genius bar appointment at your local Apple Store. -AJ

From Apple website:

To put your device into recovery mode, follow these steps:

1. Turn off your device and leave it off.
2. Plug in your device's USB cable to a computer with iTunes.
3. Hold down the Home button on your device as you connect the USB cable. Keep holding down the Home button until you see the Connect to iTunes screen.
   
4. When you see this screen, release the Home button. If you don't see this screen, try steps 1 through 3 again.

When your device is connected, iTunes will open. You'll see a message saying that iTunes has detected an iPhone, iPad, or iPod touch in recovery mode.

Use iTunes to restore your device. Restoring in recovery mode will erase your device. If you previously synced with iTunes or iCloud, you might be able to restore from your backup.

The other problem is that my power switch is all messed up, it doesn't really work, therefore I can't turn it off.

With hardware issues like that besides the reset problem I would definitely go to the Apple Store. Even if you solve the reset issue, you will need a reliable power switch.

Out-of-warranty cost: