On most websites I’ve read that it’s recommended to drink it 3 times a day. 6 is much in my opinion. You do need other foods as well. Green tea has a load of health benefits, but it’s also known to block absorption of iron…which our body really needs. An iron deficiency can make you lethargic/tired, dizzy…even more so during your period as you’re losing iron through blood.
I would suggest cutting down on the green tea…and also incorporating other foods (fruits, protein, dark green veggies). And combine the healthy diet with the exercise if you’re trying to lose weight.