I feel pretty ashamed as I just experienced SP a few hours ago and it didn't turn out so well...

Just a few hours before I typed this post I was lying in bed. I remember reading about a technique where you concentrate on controlling your breathing and focusing on the little random light patterns that form when your eyes are closed. I figured I would just try it seeing as I haven't had much luck with inducing a lucid dream anyways.

All I remember is that eventually my breathing became much tighter...like I was being squeezed and I had to breathe really hard to overcome it. Then....I heard this very loud screeching yell..though not really a scream..it sounded like unrecognizable words were just roaring from somewhere in my room. I remember opening my eyes for an instant and I perceived the source of the sound was my mirror (this was after I stopped hearing the sound, which didn't make sense). I couldn't move any part of my body at all and was extremely scared. Then I opened my eyes again and I see in my mirror this faint light in my pitch black room.

A few seconds later I am back in my bed, looking opposite from where I was looking in my "dream" (the mirror). However I swear I had to open my eyes twice, maybe it was some sort of split second false awakening.

I spent the 10 minutes shaking in my bed trying all sorts of reality checks. I couldn't handle what had happened and was literally scared out of my mind. It was the loud screeching yell that got me I believe. I calmed down pretty quickly afterward and was somewhat happy that I seemed to make progress. I couldn't bare to try going back to sleep ago as I didn't want to experience that again. So I got out of bed and looked around this forum for similar situations....lol.