Hundreds of dollars, and tens of hours of back breaking work in.. NEED HELP.

There are any number of homes with plywood walls for a foundation underground. Your plywood should have had a water-proof membrane applied to the outside. Will not last more that 2 years if that long. Humidifier may help. After caulking use dry-lok water-proof foundation paint on the walls and find a way to pipe in fresh air or the stagnating air may make you very ill. There is also the very real possibility of cave-in. You may survive being trapped under a wood panel but if dirt covers your ass you will not even be able to kiss it good-by.
Do you not think your parents will notice a new name on their utility bill come time to pay them?

I would really like to see some pictures of this project, sounds cool.

take all that motivation and get a paper route...or go back in time and don't buy all the material and lights, then take that money and use it to pay for college/move out or whatever other pipe dream you want to come true.

Picturess????

If my kids dug a hole like that in my backyard I'd fuckn kill em lol. Fill that hole back up. Growing good bud is hard enough, let alone the headaches you will have in a pseudo cave. I would look elsewhere to grow.

If poster isn't kidding this is a mold trap, an electrical hazard and an invitation to disaster.

your just nuts on more than one level. that hole should have been filled or your room rented out. whats with parents these days.

I dated a guy once that would go on what I now know to be meth binges, but during one him and one of his friends built a hiding space underneath his bedroom floor...they built a whole little underground cave right under his floor...it sounds like you are as crazy as them...so good luck.