Shit I use to get them and they would be really bad experience. I remember the first time I got it, I had a heavy blanket over me, the air conditioner off. So I was sweating hot, I couldn't move, I tried to yell, move, and do anything but I couldn't. But I could see everything around me. I believe my sister was walking near me, I saw her, I was calling her name but nothing. I was about to start crying, I was that scared, please not that was my first time.
Another time when I got sleep paralysis, the first though in my head was "NOOOO, Not this shit again". The second after, I had some dark shaded figure rush to me, stared in my eye (like it was looking at my soul lol). Then started to push me down. That shit was pain fool. It felt like I was being squashed.
After that happened, I started to do some research because I was scared, I didn't know what was happening. I was a bit happy when I found out that I wasn't the only person who had these same sleep paralysis experiences. They said that, most of the experience that happens to you, all come from your imagination. They said if you keep calm it isn't as bad. So now when I get them I'm just chilling. I also read some nice techniques on how to wake up. What I do is just wiggle my toes until I wake up.