Hydrogen peroxide H2O2 in swimming pools; how much how often?

Good morning

Just measured using MPS level using a test strip. No reading or very low.

Pool is blue, slightly cloudy due to the floculant I think.

Obviously no chlorine reading on free chlorine test strip ;

Ok/high Stabilizer

PH 7.2

TAC around 80/120

If I added 7.5 liquid chlorine can I start to get back to chlorine rather than H2O2 without risking the dreaded green tinge. -“ your pools gone green” .”turquoise surely sir?” Is still my guest. Tho it’s grey day at the moment and not very conducive for swimming.

Basically I need to drop the CYA

Thanks