Need help, a few bits of it

Ok, since I lost my job RIGHT before I decided to start growing (imagine that), I'm growing on a VERY tight budget. So tight, all I could afford was a 26w CFL @ 1800 Lumens and a 2700 color range.
My plant is stretched, but it suddenly stopped growing OUT. I have a very strange (ahem) feeling that it has to do with these.... abberations.... happening to my plants.
There's brown spots appearing. I had some bugs on the leaves (NOT mites), little flying bastards with no identification, and I had assumed they were causing the browning, but, now that there's no sign of them, and the marks are spreading, I have to ask for help (again).
I have some pics for you, they're linked in the thumbnails because this old stoner does not know how to direct link images.

Edit: Should mention that I cannot supply you with relative humidity, PH, or a better picture, my camera sucks and I'm poor. No nutrients.

that is not even close to enough light. you should have at least 5 of those lights.

and you should be using 6500k bulbs for veg instead of that 2700k. the 2700k you will use for flowering.
PH control is a must. If you cant spend a dollar, let the water you use sit out for a day so the chlorine can evaporate.

Yes, I know I need better, but I just don't have it. The tap water is put into old bottles and left uncapped for around a week. At that point, I screw on a slow watering cap (bottle cap with holes poked in it to not disrupt the roots / soil as much when I water). As for lights, it's what I've got, it's all I can use.
The issue I'm asking about is the leave problem, not the low growth problem.

At that size, just put it outside and give it some natural light. Doubt anyone would notice...

Outside growing isn't an option, this is Chile country, and pests eat any plants I place outdoors within a few days, regardless of measures (except netting, again, poor, can't afford it.
NTM it gets 100+ consistantly with spotty rain or cloud coverage, and you have to wait til near October here to harvest. I'm a medical patient and can't be waiting that long.

the brow spots will never get better. if you cant get enough light and the correct supplies then dont waste your time. Im not trying to be a dick but you will NOT grow anything with 1 cfl.

Ok, so you're saying the spots are from lack of light?

This isn't my very first grow. Back when I was a wee pup, my father and I used to grow all the time. Shit, we used to use fish tank lights, which put out WAY less light than a single CFL. We didn't grow enough to sell, but we grew enough to smoke. I don't give one about optimum grows, what I really care about is these browning areas. If the issue causing them to brown is indeed light, I'll figure something out. If it isn't, I'd like to know what is.