OK, first off, your first post!
Welcome!
Second, will you put a bit about your pool in your signature block?
Third, there are some good rules of thumb in pool math that can help you get into the ballpark of a TFP pool.
For example:
TA: 60-80 -- Your 200 means you are probably chasing pH often. Getting TA down, in a nutshell, involves dropping pH to the low end of the range, then aerating to bring it back up, then dropping, rinse repeat.
CH: your 150 is fine if you have a liner pool, or fiberglass. What type of pool do you have?
pH: --your 7.5 might be OK, but we need to know more.
Pool School is a great place to learn about all of this and then some.