I've noticed lately, that I've had many DREAMS where I sleep paralysis out of my body, and go around in my room. I'm 100 % sure these have been dreams, cause of the lack of details, misplaced or ignored items and the fact that I'm always affecting things physically (like moving things, turning on my pc). Guess these dreams are because I want to have an astral projection!
So far I've done experiments while I know that I'm in the "real" sleep paralysis (not dreams). For instance, I've moved my arms around in paralysis, and noticed they didn't move at all when I open my eyes, and I did the same thing with turning my entire body around. But things can be so confusing in this weird state. Not scary, but... illogical. Recently, in sleep paralysis, I waited for the frequency to go super high (sound in head), then I noticed I could move my arm, probably my astral arm. I thought of the lamp behind me, and I found the wire and flipped the switch up. Shouldn't this be... undoable?! Well, my eyes were closed, but I could still easily see that no lights were on. I clicked the switch several times back and forth, and nothing happened. When I opened my eyes, my arm was REALLY under my blanket, and it was as if nothing had happened. If this was just a dream too, I find it super hard to differ between dream and reality, but I'm very sure it wasn't a dream, cause I've had many other conscious paralysises where I've noticed the same things when I move my body.
Does anyone know I mean?

Or had any similar?
How do I know for sure what's really going on?