So basically im a first timer and want to make my own grow box big enough for six plants, were do I even start?
I would recommend using an old closet, pc case, dresser, or like me, a night stand, you want to use something big enough for the type of plant your growing. Strip it, Drill holes it in it for ventilation(use fans for best result). Paint the insides a flat white or cover it with mylar and finally hang your lights. If it's your first grow I would say test the waters with 1-3 plants. I made the mistake of over extending my reach the first time and it did not work out. p.s. there are plenty of great tutorials online, google it!