If you dream of cutting your hair, it is a dream symbol of change. This dream may be triggered by events that happened during your day. You might have received a stimulus that suggested you should change your looks. Then you dream of cutting your hair.
If you have been carrying some emotional baggage, like emotional distress, then this dream means you should let go and get rid of the weight that has been burdening you. When you cut away old hair, it is like cutting off the old ties that bind you to emotional baggage.