At 83,000 miles, IMO, I would have all fluids replaced. I just did all 3 on my 2012 and all fluids looked like they needed replaced.
Regarding power steering fluid, you could easily do this. Suck the reservoir dry and pour in new fluid to the low mark, then drive the vehicle to circulate and mix/dilute (I did this in conjunction with the transmission fluid replacement). I used 2-12oz containers of Honda PS fluid, and based on the color of the remaining dilution and the <$5 cost per container, I will use 4 containers next time. There is another method that I’ve done with other cars where you detach the return line and pump the fluid to a container, and keep refilling reservoir, but you have to bleed out air of the system which ends up taking just as long as the dilution method.
If you have never bled the brakes before, have someone else do it. I can assure you that an independent shop will do just as good of a job for less $$$.
If you never did transmission fluid, I would also have someone else do it. You will need a jack, jackstand(s) or wood blocks, oil drain pan, funnel, lots of rags, getting under the car and draining, measuring what was drained in order to add same amount, and doing everything 3 times. My 2012 dipstick tube is so small that it was brutally slow adding the fluid from the funnel retrofitted with the small diameter tubing that fit into the dipstick tube. I’ll bet the $83 USD does not include the cost of the fluid.
Frankly, I have read on this site the average miles before replacing the coolant (10 year 120,000 miles, then 5years/50,000 after that), to which I don’t agree with at all. At 83,000 miles, I’d also have the coolant replaced.
Just my $0.02.