Well, you don't have your signature filled out with your pool details, so I'm not sure what or how big a pool we are dealing with, but.....
CYA/Stabilizer is not in the fill water or the liquid chlorine, so you need to add it. Without stabilizer the sun will deplete teh chlorine by the end of day one. Most of your big box stores (Home Depot/Lowes/Walmart) have CYA so you can pick it up there.
Add the CYA by using what we call the sock method. Get an old sock (no holes in the toes) and put the measured amount of CYA you need to get to your first target. Tie the sock closed and either suspend it in front of a return (hang it from your brush pole works with something weighted on the deck) OR if it still allows flow thru the skimmer, place the sock in the skimmer. Every 15/20 minutes give the sock a squeeze to speed up the process or just leave it alone, your choice. Please DO NOT follow the directions on the container of CYA to just pour it into the skimmer and don't just toss the sock in the pool as the CYA is acidic and can bleach/stain pool finishes.
We also like to see folks add chemicals like CYA in stages. In your case, add enough to target 30 and wait to see the results. If the final goal is higher due to a salt water chlorine generator or a pool in a very sunny location then we might target 50, then target the final 70. Doing it in stages allows you to make sure you don't overshoot your goal. We find that many people are slightly "off" on the volume of their pool, so it's easy to add too much of a chemical. At first, just stick with 30 as your target.
Once you have the sock in the water test the following items in no particular order
FC
CC
pH
TA
CH
Hold off on the CYA test for a couple of days.