Welcome to the forum!
If you could return this detail it would help us assess
Strain; Type, Bag seed, or NA:
Age from sprout:
Age from flower:
Soil in pots, Hydroponic, or Coco?
How often do I water and how do I determine when to water:
PH and PPM of runoff or solution in reservoir?
What is strength of nutrient mix? EC, or TDS.
Indoor or Outdoor:
Light system, size, height from plants:
Temps; Day, Night:
Humidity; Day, Night:
Ventilation system; Yes, No, Size:
AC, Humidifier, De-humidifier:
Co2; Yes, No:
Any other info you think is pertinent:
@Stonelee not sure on the lighting you’re using, but I would take the aluminum foil out from under your plant. It can cause hot spots and burn your leaves.
Secondly, the leaves absorb light from above only, not from underneath.