I've had sleep paralysis too a couple of times and first I was very frightened by them, but I have gotten use to the negative feelings around it and "don't care" when it does happen and just try to stay calm.
It's also the beginning of astral travel or out-of-body experience for me - but I never seem to make it happen - my chest and head always "weigh" me down... So I'm starting to believe that it's all in my head..
I've also opened my eyes during this "moment" which is kinda cool/weird... Once they are open I can see the sunlight in my room (if it's during a day) whilst feeling all these negative feelings and feeling half my body floating! Hehe...! Did this happen to anyone?