grow room ?

allright so i made my own grow room today and as i was makin it i noticed that at the tip of a leaf is bright yellow i think its burning.(not anymore).what i did is i completely surrounded the walls in my grow room with tin foil.but i needed a door,so i just took a sheet of foil and put it up against the grow room i left the top right corner free with none so i can put the light thru is it done right and i kno i have no fan connected to it the fan is just sitting in my room. is this still gonna air it enough or should i completely blow the air towards the room and on the plant.? lmfao srry for the complication lmao im ...thnx

Help us out here - this post is impossible to glean any analytical information from that one could use to help you. How about a picture or a drawing or something. I would like to help you but cannot for the life of me figure out your set up from that description.
What kind of lighting?
What are your lights on/off temps?
Do you have a fan in the grow space?

Lets start there.
GWN

So your saying your setup is 4 tinfoil sheets on the walls but you need a door and you left one sheet of tinfoil free so you could just pull it to go in and out?...

First off tin foil is a terrible reflective material due to how malleable it is. It crinkles and therefore doesn't reflect light properly. Get some visqueen plastic...it is cheap and much better. Secondly you should have some kind of air movement. A plant will use all the CO2 surrounding its leaves and without slight air movement it wont be replenished.

I hope this helps... took me awhile to figure out what you were trying to say,