While it’s a beauty myth that women over 55 must wear their hair short, the real marker for whether you should be wearing your hair short is whether it would flatter your face shape and work with your hair texture.
Curly hair, for example, tends to look better longer. And if you have a round face, you might be better off with a hairstyle that falls a few inches below your chin.
All I can say is just do your research and find which type of looks suit you best
Very Short Hairstyles For Women Over 50