yes... go back to walmart and get some cfls or some floro tubes. i prefer cfls myself, but my older set ups used both tubes and cfls. try to get at least 23-26actuall watt bulbs. i dunno if walmart has y splitters but you need a few of those too, if they dont your local hardware, home center will have them.
unless you are attatched to that plant i kinda recommend starting over. or you could flower it out with proper bulbs.
ps dont feel bad tons of us screw up when we start. i tried to grow with a flood light, and a blue party light... then progressed as seen in pics on my first grow. now ive got a massive 550watt+cfl rig and a 600 watt hps. if you grow seriously, you will always be wanting to upgrade. at least i do.