Too Many Layers
Whether you go with long layers or short layers, be sure not to overdo it. Layers can add shape and body to hair, but going too far can have the exact opposite effect.
The more layers you add, the thinner the bottom of the hair will look. Shorter layers can also be unflattering on different hair types, so don’t just the look based on how it appears on someone else. Consult with a stylist first.