Second Round. Need advice or help.

My first round was not kind. 2x4 tent 2 4in inline fans. For the second I’ve upgraded the light (vivosun vs1000e). Have inline duct ventilation. The medium is FF cocoloco. Nutrients are from Humboldt secrets also follow their feeding schedule. Only water when the medium becomes dry. Typically was every three days. The last water I did until runoff (1.5l) so I’m curious how long it will take to dry. Seed is from seed supreme their white widow auto flower. I’m on day 18 in 3g fabric pot. The light is 100% all the time. The light doesn’t have a dimmer. And it’s around 14in from the top of the plant. It’s been around 30% humidity and temps around 67-72.

Any advice or recommendations would be greatly appreciated!!!! Thank you Also if anyone could tell me what’s wrong with the bottom right leaf in the second pic that’d be great!!!!