I agree with pricing yourself based on your value. I am a black belt martial artist with a little over 8 years training. It was a lot of blood sweat and tears that went into that lol, so my pricing reflects that to a certain degree.
Depends on your location, clientele, competition and market. I’d suggest emphasizing how much you can help your client over a long term to ensure they sign on for a long time, as well as pay a premium for your services.