My daughter just woke up crying crying and crying (screaming) like an hour ago and she wont stop, she doesnt want anything just crying. what can it be? its very scary?

There are physical and emotional factors which can be at play. If you have a pediatrician, an urgent visit would be appropriate; if you have none, a visit to the nearest emergency department of urgent care facility might provide the quick assessment sto search for the underlying cause of your child's crying.

The age of your daughter is not listed. I wonder if this is a night terror