Garry, I'll help with the adjusting, but need to check one thing first .... your CC (Combined Chlorine) is elevated. Often times that is an indication that the pool is overloaded with chlorine that is in transition to be oxidized. Now we've had bad weather lately and not too much sun, so we need to watch that closely to determine if you need to perform a "SLAM".
As for your questions ....your last CYA was 70, so your FC should be at 8 and never below 5. Anything below 5 means algae, so increase that with some bleach right away. Yes, lower pH with acid to about 7.6 or so. As for an elevated TA, you are correct. You do lower that TA by lowering pH even more (to about 7.0-7.2) then aerating to raise the pH back-up safely while leaving TA lower.... then repeat as necessary. Once you add chemicals, let it mix well for about 5 minutes then check again.
I would make those adjustments now, then continue to watch the water clarity and CC level. With a stronger FC level, you might be able to eliminate any excess organics in the water. Let me know if you have any more questions.