Do you go to the hairdresser often? What do you normally get done?
Very good. Note the corrections;
I go to the hairdresser's every month. I have layers, highlights, wash and blow-dry done and get a nice hairstyle.
Use I'm having for things you are doing 'right now'
When you go to the hairdresser's, someone else does the work on you, so use the passive voice; I have a haircut instead of I cut my hair.