Thanks for posting on HCM,
On your own you would not be able to remove the paper without assistance and since this concerns your body and health, I suggest you go to the ER for assistance.
There they will examine by othoscopy and determine the depth of the paper in ear. Ones that is done, a surgical equipment or warm water flushing
with a syringe might be used to remove the paper. Just be careful not to try to force it out by yourself as perforation of the middle ear is likely and that is a possible serious complication that should be avoided.
Hope this helps