Okay, I am going to go over this ONCE. Sleep paralysis is not dangerous at all, even though it may be scary. It is a subconscious procedure of your mind to disconnect motor functions while sleeping to avoid real injury during sleep. People who walk in their sleep lack the ability to enter sleep paralysis, which can cause a lot of complications and, occasionally, death. Sleep paralysis allows you the sensation of motion during a dream, but prevents you from actually moving physically. The majority of the time, you are in deep sleep as this occurs. Sp basically prevents you from getting up and running into a wall or something if you are being chased in a dream. However, if you do wake while in this state and it does not deactivate, your first reaction will be to move. You will be unable to move, and you may panic. After that, you may see something like a shadow on the ceiling or the lights of a tv, and you may see something scary in them, such as a dark figure on the ceiling or eyes in the lights. This will scare you even further, causing extreme panic and paranoia.
Now, the correct procedure to follow if you wake during sp, at least from my experience, is to acknowledge you are semi conscious, verify sp is present, close your eyes, remain calm, and try to solve a complicated math problem. By closing your eyes, you reduce the risk of seeing something that frightens you. By attempting to solve a complex equation, increase your conscious activity and can disable sp and wake up completely. After you get up, drink something, calm down, and go back to bed.
Alternatively, you could could follow the first three steps: acknowledge semi-consciousness, verify sp, and close your eyes. After that though, try to lucid dream by breathing deeply, relaxing, and entering a floating sensation. You fall asleep quickly, and can remain lucid in the process.