Critical Orange Punch-My First Grow

The ph is 6.5 or a little more, the night temperature is 19.5 or a little more. These days I'm using rainwater and to lower the pH I use wine vinegar. I have shortened the distance between the lamp and the plants even more. On the 13th I started with the LST and every day I lowered the plants more and more until I obtained a complete exposure of the whole plant to the light. Unfortunately I forgot to take pictures as soon as I ran the lst I added fertilizer at 1/8 of the recommended dose for the first time. On 15 I topping.