so far you're looking fine. Id recommend a few things, if you don't have them already, temp/humidity gauge, PH Meter and PPM meter for your feeding. If possible, up your lighting game. If not, no biggie for your first grow. Just thinking with 9 plants, you should hit those babies with as much wattage as you can afford while balancing the offset of whatever heat you may produce. If at all possible, keep those temps around 75F-80F if you can. and 68-70 when lights out, and gradually get your humidity into the 60%'s range. Make sure you water them fully (you won't drown them) and then let them fully dry before next watering. Most importantly, I tell this to all first time growers, its super exciting and fun I know, but DON'T LOVE YOUR PLANTS TO DEATH!! Good luck with your grow!