Don't bother testing for CYA for awhile, you put it in, it its there. You can check in a week or three. Just use your "calculated CYA" in calculator.
The stuff you added is correct, stabilizer/conditioner/CYA all the same thing, labels differ. The brand you got sounds like what we put in my friends pool, slower to dissolve than HTH brand so squish the sock when you are there.
Right now, at shock level with some CYA undissolved, the pool is really above shock level. So no one, blonde or not, will want to be in for long. It will irritate tender skin; nose, eyes, privates. Harsh on hair too. What blondes need to be wary of is copper, found in some combo chlorine tablets and algaecides- that turns hair green. (add to notes, always read contents of pool chems, look for copper)