How to regulate emotions in…?

I have a 4 year old daughter who most of the time while playing with her dad, cousins, uncle etc, and when she gets hurt- she over exaggerates and eventually turns into fake prolong crying. She then wants to be left alone, so I tell her to leave the room. Sometimes I think she does it for attention. I’ve had family members say they don’t want to play with her because of her reaction. How do I approach this with my child?