If you would like some suggestions ill chip in.
Get a rectangular box and stand it up long ways, cut a hole in the back near the bottom and one on the top.
With your lamp on, the heat rises up and out of the top hole you made, and draws cool air inside of the box.
Paint the inside "flat white" with spray paint($2.00 a can)
Or line with silver mylar balloons from dollar store($1.00 ea.)
Get a daylight spectrum cfl.(lowes has one for $1.98 1500 lumens 6500k)
This is an upgrade from what you are running now, I use a similar box for a male plant, to separate it from my girls.
Ghetto but functional, upgrade as you go along. Try finding a small cabinet.
For my first grow, I started 8 plants under incandescents, upgraded to cfls and ended up with 2 oz of fluffy but resin covered buds… it was much more than I ever expected.. 6 of 8 turned out female, but I only harvested 3, because 3 turned out sativas and were taking much longer to finish than expected.