What happens next?

How to fix a stuck toilet handle
Turn off the water supply.
Before you reach into the toilet tank, get rid of the water. Look for a flexible pipe that runs from the toilet tank to the wall.

Select from: --Flip off all the valves on that pipe and release them. The pipe will be corroded and you'll need to replace it.. --If there isn't a pipe, you can install a standing screw into the wall near it. Measure if there is enough and cut it.. --You'll see a metal knob that you can turn clockwise to shut off the water. If you have an old valve that won't turn, lubricate it with some wd-40.. --If you can see your toilet handle, the pipe is probably stuck to the pipe. If you've applied a solution to the toilet handle, it should fall off fairly easily..
You'll see a metal knob that you can turn clockwise to shut off the water. If you have an old valve that won't turn, lubricate it with some wd-40.