Its a learning experience. Proper equipment if you can afford it, doesn't have to be fancy. Your fan looks big but your just starting out. Each stage of life has different needs. At the seedling stage, don't overwater. They need a good environment to thrive and proper feeding. Supply right PH, airflow, feeding, watering, humidity, lighting and temperature. Harvest, drying and curing are another ball game all together and can ruin a successful grow.
Good luck
There is plenty of legit literature that can guide you through each stage but as a novice expect to have issues. It's not as simple as it seems. Flower stage, harvest, drying and curing are the challenging parts.