Your light is good for a space about 5 x 5. I would recommend getting some kind of grow space set up as soon as possible that is that size--or just big enough so that you can get around your table--no bigger than absolutely necessary as even 6 x 6 is going to put your light below minimum acceptable levels. Trying to illuminate too much space will result in unsatisfactory bud development. And if you do not have all 4 sides enclosed with some kind of reflective surface, your light is disbursing throughout the entire space and you are loosing valuable light.
Just opening the door a couple of times a day is not going to work. You plants need a continual supply of fresh air all the time the lights are on. Proper ventilation is almost as important as your lighting.
I think it might be a good idea if you can find some time to do some basic reading so you know what it is going to take to get plants to harvest. It really is quite complicated and takes a lot of knowledge. Having a proper grow space set up--one with adequate light, is enclosed, has a ventilation system in place, has temps and RH where they need to be--is something that really should be done before you ever pop 1 single seed. The 4 x 4 scrog will be okay with the 10009W light if the space you build around thed scrog is not too big.
I am not sure what you are going to do with the 6 la blanca that you just popped. Your light is not nearly enough to do both. The six la blanca you cracked are going to require another light/more light. You cannot do 4 x 4 scrog AND 6 other plants with only a 1000W light.