6 am may be a little late for the EMA, but I am not sure on that. If you can fall back asleep pretty quickly after that initial wakeup, I wouldn’t worry too much.
The human body is an amazing thing, and it often provides clues as to what is wrong….we just don’t always listen. :)
You mentioned you go to school part-time. I assume your school has resources like a counseling and testing center that can be used by students at no charge. Check it out if the situation warrants it.