How often would you recommend riding/exercising a 7-year old green broke mare? She wasn't ridden too much before I got her 9 weeks ago. I have been riding her almost every day, with a day off every 3-4 days.
The rides are in an indoor arena and consist of a whole lot of walking and a little trotting, no cantering yet. Normally lasts for 30-45 mins.
Lately she's started to get kinda "spooky" in the arena, she threw me off once when she bolted and then bucked! The horses have not been turned out in 9 weeks, but I'm out there every day to let her out to at least walk around and then I usually either lunge her or ride her or both.
Do you know it's more likely that I haven't been working her enough, or on the contrary, too much?? How much/how often would you work a 7-yr old green broke horse?