I woke early this morning (5:40) to go to school, but found out it was a snow day. I went back to bed to WILD. 3 times I tried and 3 I failed...

The first attempt came out by accident, euphoria and fear washed over me. I was unprepared and woke up.

The second time I got pass the feeling and started to hear sounds almost like a lawnmower shredding garbage. I woke up.

The thrid time I went a little further and experienced paralysis. Everything was going according to plan until I lost any sense of whether I was breathing or not. I didn't want to wake up suffocating so I payed attention to whether or not my chest was moving. For some reason I panicked and tried to consciously control it but found I had shortness of breath. I woke up.

What did I do wrong? Should I had just taken for granted that I was breathing? How can I be sure whether or not I really am breathing?