I feed every watering, roots love consistency.
So I'm giving the same amount with each watering (raising it as the plant grows), if I see it needs more or can handle more, I raise again slowly, if I'm burning I back off also slowly.
Flushing and all that is pure shocks to the rootzone.
You want to maintain a stable rootzone in terms of ph, moisture, temp, nutrients available etc
In flowering it's most important as it's a 60-+ days race, each day something happens (bulking, stacking, densing up) indoor it happens at a fast rate and you gotta be on top of it.
If your temp is 25, I saw your rh is 52 which is good, your gonna have a slow pace, your light is not enough to deliver the explosive growth your after at this temp.
Leds work better with heat, in low temps... Popcorn buds.
But maybe the quality will make up for it.