First things first, welcome and I hope you learn a lot from this first grow, you can call me SMG. Nice to meet you man.

One thing you should do right away is get rid of your tin foil and light proof your box with duct tape on the outside. Paint the inside of it white or tape up a bunch of white pieces of printer paper. Tin foil is bad at reflecting light the way you intend it to and will end up creating hot spots in your box (BAD!).

Peace,
SMG