Why do I always feel the urge to cut my hair?

Ok, I've always had kind of shorter hair. When I was really young, my mom never let me have long hair. She always had me go to her hair stylist, and they cut it like boy short. I remember being young and putting like scarves around pretending I had long hair. But I think this short thing has stuck with me, because even though I don't have boy short hair, the minute it starts getting longer, like past my shoulders, I get really kind of antsy to cut it. Will this always haunt me? It's like impossible for me to have long hair. The minute it starts getting longer, I have the urge to cut it. Is this because of what my mom did when I was young, or is this just my own thing? Oh and to this day, my mom keeps telling me how I should cut it shorter. So I don't know if I'm impressionable or if this is my own decision? Thanks.