No need to apologize for asking questions. That is why we are here!

In your pool, each 1/2 cup of 8.25% bleach will add approximately 1.5ppm of chlorine. You can use that as a reference for how much you need to add each time you test. You do not need to dilute it. You can simply pour it slowly into your skimmer (if your pool has one which I think it does) or you can pour it slowly in front of a return jet, being careful not to splash it on you or the liner. That is it. Very simple. I typically wait 3 or 4 hours after I add before I would test it again but my pool has 18,000 gallons. In your pool, I think you could easily have it mixed in within and hour or so. Two to be sure.

It is best to test the chlorine and add bleach if necessary in the evenings after the sun is off the pool. With CYA at 150, you probably won't need to add it again for a couple of days. Test it the next evening and see where your chlorine is and then decide if you need to add more. If not, test again the next evening. You just want to make sure you can make it through the next day without ever dropping below your minimum based on your CYA reading.

Don't hesitate to ask more questions if you need to. That is how you learn. (Does that sound like a teacher?? )