I would start by learning each of greek gods. Not in reference to a movie called Percy Jackson!!!!!
Zeus-King of The Gods. God of the sky, weather, thunder, lightning, law, order, and fate.
Poseidon-God of the sea, rivers, floods, droughts, earthquakes, and the creator of horses; known as the "Earth Shaker".
Hestia-Virgin goddess of the hearth, home and chastity.
Hermes-God of boundaries, travel, communication, trade, thievery, trickery, language, writing, diplomacy, athletics, and animal husbandry
Hera-Queen of the heavens and goddess of marriage, women, childbirth, heirs, kings, and empires.
Hephaestus-Crippled god of fire, metalworking, and crafts.
Hades-King of the underworld and the dead, and god of the earth's hidden wealth, both agricultural produce and precious metals.
Dionysus-God of wine, parties and festivals, madness, chaos, drunkenness, drugs, and ecstasy.
Demeter-Goddess of grain, agriculture and the harvest, growth and nourishment.
Athena-Goddess of intelligence and skill, warfare, battle strategy, handicrafts, and wisdom.
Artemis-Virgin goddess of the hunt, wilderness, animals, young girls, childbirth and plague.
Ares-God of war, bloodshed, and violence.
Apollo-God of light, music, arts, knowledge, healing, plague and darkness, prophecy, poetry, purity, athletism, manly beauty, and enlightenment.
Aphrodite-Goddess of love, beauty, desire, and pleasure.
These are the ones I was able to recall from memory.