I don't remember how old Kyleigh is (and it sounds like she's old enough not to worry), but generally my only caution with regards to exercise is with dogs under 1 year old. Exercise is still good and necessary, but too much or too much high-impact stuff can cause problems later in life, such as early arthritis. They won't always show a problem early, but it can still lead to cumulative damage. For young pups, it's always good to talk to the vet to determine appropriate exercise levels.
With healthy adult dogs, I say go for it! My dogs get what many consider an extreme amount of exercise as well (all-day hikes on weekends, running a few miles a day with me, walks and play and sport training on top of that), and they're all going strong--and if you look at my signature, a few of my dogs are getting up there in years and have been doing it all their lives. My vets always comment that they're some of the youngest-looking old dogs they've ever seen, and the only dog who has a problem with arthritis (and it only flares up in cold, damp weather, which we don't have much of here in Albuquerque) only has a problem with the leg he broke when he was hit by a car, and now he has pins and wires holding it together. Not to say they haven't slowed down from when they were 3 year olds, because they have...but not so much that people who don't live with them notice!
So yeah, I'd say you're doing fine.
I'd rather see a dog with a lifestyle like yours than one who goes nuts sitting on the couch all day! As long as you're paying attention and will stop if she gets too tired, you're fine IMO.