Ok mate, i suggest getting through this grow then with what u yield put some aside to get 1 600w digital ballast, bulb an hood if poss. U could get a solid LED panel but i couldnt recommend one specifically. 1 600w hps should yield u 25oz quality green, i can see clearly that theres not enough light what ur doing now and u will see a huge diff upping the wattage, ur bills may rise slightly but u will yield enough to more than cover electric bills. the best nutes on the planet wont boost ur crop if not enough light of the right spectrum.
CFLs are fine for veg but thats it. u can get green in flower with them, but theres getting some green and then theres getting shitloads lol.
Remember guys light and environment are the most important things to consider when growing, good environment with lights to match will treat u very well.
u have to work with what u have for now, but if u can save a few hundred dollars for a cooltube, ballast bulb, extraction fan and some duct u will improve significantly matey. We can talk about nutes if u can get a chance to make the lighting upgrade, hope it works out for u bro.