I would be like my horses, my rules, my training methods and schedules. Mind your own please.
Keep doing what you doing though, if she starts bugging again. I would politely say do mind your own business, i've had my horses for X amt of years and have been doing this for such an such as long. If you don't like the way I do things, then please keep your opinions to yourself, and go about your business. Thank you have a nice day!!