Hi and welcome!
The biggest immediate issue is that your test kit does not include a CYA test. Without that test, we can’t know if your chemicals are balanced.
Here we follow the
FC/CYA Levels which determines what your free chlorine level should be. It’s possible that it’s far too low, if your CYA level is high.
So step one is to get yourself one of these to supplement your K-2005:
tftestkits.net
Once we have that missing piece, we can advise the best course of action to clear up the pool. You’re likely to need to complete a
SLAM Process, but that’s not possible until we know the CYA level.
Id also encourage you to read through
ABCs of Pool Water Chemistry, it’s a great help in understanding the relationship between chemicals.
We’ll be here for you every step of the way!