At the very least, get a CFL.

40 Watts is good enough, but you may have to buy a bunch. Or get a giant 150 watt CFL. That works, as well. And depending on how tall your plant gets, should be enough to make it grow. And put it 2-4 inches above your plants, at all times.

When buying soil.

Make sure you buy some peat moss as well. Because most potting soil, gets too hard after it dries, and doesn't drain too well because it's so hard. The peat moss will help the soil stay loose, and promote drainage.

Germinate your seeds first.

Don't just plant them outright. That usually never works, sad to say. Make sure you have a plant, before you go planting it. Germ first. Plant second.

Pay attention to the light cycle.

Give the plant the light it wants, and the darkness it needs for bud production. Usually 18/6 during vegetative growth is good. And 12/12 is good for the flowering cycle.

As far as growing...that's all I can think of at the moment.
Aside from have patience! Lmfao.