It looks like you have a 2013 AWD CX-5? Always refer to your maintenance schedules in the manual.
Coolant is good for 10 years or 120,000 miles. Replace it at either of those intervals. Otherwise, just top up as needed in the reservoir with FL-22 coolant. Although green, it is not the same as your standard "green" coolant. Also, (IMPORTANT: When the car is completely cool!) pop open the reservoir and coolant caps yourself and inspect the fluid. Should be dark greenish in color for FL-22 fluid. If it still looks like that and doesn't appear dirty, then you are fine. If you have reached 120,000 miles, then yes, go ahead and replace the coolant. If it is genuinely dirty, then this would probably be my number 1 priority. But I'd check and make sure it actually is, otherwise you could be spending $ to replace it when it doesn't need it yet (I don't know what mileage you're at).
Brake fluid, I believe is as needed per the maintenance schedule. I don't really know how to check/tell myself. If you haven't replaced it in a few years, then probably doesn't hurt to do so.
As for the Rear Differential oil, the manual only specifies certain conditions to change it. Same for the transfer case oil. I just went ahead and had both replaced at around 50k miles. (Or maybe it was 60k? can't remember when I did it now). Some have remarked that these are filled low from the factory.
The transmission fluid is the only fluid specified as "lifetime", but what constitutes "lifetime" is open to anyone's interpretation, and plenty of us have done drain/fill services for it. My advice, read your maintenance scheduled in the manual.