Your setup now is appropriate for veg only. What my advice would be to keep what you got and practice growing your plants in veg. Try topping and cloning, get your nutes dialed in, most importantly start saving up for a HID light. It's crazy what you can do with even a 150w hps, should be enough smoke for at least one person and good smoke too. Try looking at
HTG... Just remember you want to flower when your plants are about 8 inches tall with a 150w, plants may double or triple in size in flower, the bushier the better. Your here and on the right track. I would read all I can.
Good Luck and happy growing!
KnB