Hey dude I don't know how you did that rep thing on my page but thanks. Your journal's great.
I've seen some problems too and it sucks I know. But stick with it man. You had the ingenuity and motivation to build yourself that setup so I know you're not gonna feel right till you get it to pay off. You just gotta jump back on that horse and maybe take it a bit further, at a pace that fits your budget of course.
I think one guy mentioned something about more venting holes, and an exhaust fan would be great if your room is too hot. You might be able to pick up an AC on craigslist or what not for pretty cheap (Proly at least 100 in the store so... maybe somewhere in the 40-60 range). Put it in your window and turn it just high enough to keep it under 80F at the hottest time of day so you save on electric costs. A cheap window lock bought from home depot for proly 5 bucks could save your investments from neighborhood kids who catch a wiff of the vapors. HID lights (hps or mh) are really hot so that's something to think about.
You've already got this stuff and it wouldn't be a waste to use it to get some free/cheap buds and some knowledge about growing and have a hobby that "brings peace to your soul," shit we smoke enough of the stuff we might as well learn how it grows (and how it works). Even if we fuck up five more times it won't be a waste because we will have learned about several different kinds of problems and what does, and does not work to treat them. I know I'll never use a bug bomb on my tiny setup again.
Good luck on your next try, and keep me updated if you don't hear from me.
Peace