I don't think anyone has mentioned the expression 'Tearing your hair out' - it is obviously an old and well-known phrase about the manifestation of frustration.
Five year olds do like to get their own way and learning that they cannot always have it is a lesson they have to learn over time with gentle help and encouragement from DP and teacher, I think jumping the gun and seeking specialist help in the first instance is rather drastic.
How can this be allowed to happen?


according to DS girl (well, sister) and bossy are interchangeable.