Many fine hair people who sit in my chair have gone trough horrible, life-changing stories that make them afraid of letting anyone touch their hair.
It is important for you to ask the hairdresser questions about what they think would look good on you. Bring with you photographs of yourself at different times and with different hairstyles to help the professional understand better what you want. Yes, I know that they are supposed to be the stylist, but they are not mind readers. Give the hairdresser you are consulting with an idea of what styles you like and why you like and dislike certain styles. Dislikes are big. For instance, be sure and tell them things like "Not too short on the bangs", or "Don’t show my ears", or whatever look you absolutely hate to see on your hair.