ok so i have 1 healhy plant whos getting pretty big whos my pride and joy and i really dont wanna mess her up

i murdered so so many plants during the summer various problems that led to my first outdoor grow being batched had a various degree of personal problems which the crop was going to be my saviour ..doh

so i found 1 seed a month or go a lemon stinky which i have no intake / outake for relying on windows by the sliding drobe and a small fan which is woking OK....but obviously when flowering gets more rigorous (10th day of flower)
is going to get bud mold

so heres the problem i have 2 20 cfls (100watt equivalnts ) im using one at the moment and a 150 red envirolight and reflector whcih is not being used which murdered alot of plants before, thinking about making a box or something, i just dont know

should i risk it or should i wai till buds start devoloping an plant outdoors or something ?