I would avoid changing your TA just now, 80 is OK - so hold off on the Baking Soda. pH greater than 8 needs to be brought down a bit but don't use more than half the amount of acid you've calculated - put some in, let it mix for and hour or two and retest. It is quite difficult to calculate pH change.

CYA takes several days to show up in the test - how much did you add and when? If it was in the last few days, wait a few more days and retest before addding more.

Have you considered chlorinating by broadcasting Calcium Hypochlorite on the pool? This will provide chlorine and calcium at the same time.

Don't throw the Baking Soda and Calcium Chloride in together - you could make a big cloud.