What I do in a day as exercise

Exercising is good for whole body health. But depending on the age and the status of the person, it has to be seriously adapted and monitored to avoid mistakes and injuries.
I personally need to do more regular than intense exercise.
I recently have been addicted to the Apple App tracking my footsteps, and I am frantically tracking now.  Twice a week, I walk during lunch time at work with my colleague and we reach 10,000 steps those days. But the other days, I try to do my best to be around 5000/7500 steps (which is challenging during the week-ends because I need to rest)
I added to this very mild program a day of exercising home: Pilates, yoga, stretching, dance, abs exercises. And I hope to be hitting the gym again at one point during the week to use some equipment such as the rower, the leg machine (inner and outer thigh), or the elliptical. 
I believe this is the maximum I can do. I can no longer intensely exercise every day.