Standard pricing advice assumes every working week looks roughly the same. That model quietly assumes consistent capacity, which is exactly what an AuDHD business often doesn’t have.
A better approach builds the variability into the number itself: estimate your realistic average across a mix of good and low-capacity weeks, and price against that blended number.
Fixed-price packages with clear boundaries protect you better than open-ended hourly billing, because they don’t punish you for a slow week.