To awaken and develop the third eye, you must understand the third eye.
Knowing the third eye's name, function, location, body organs/parts, Sanskrit name, color, number, key phases, vibration sounds, oil(s), herb(s), crystal(s), and stimulants may help you and give you different ways to activate and enhance your third eye.
Lets say you want to open the third eye chakra by mediatation, you think of the location of the chakra and say the word SHAM slowly, calmly and repetitively. The sound of the frequency with awakenen hance it.
I recommend selecting at least one or two things that represent the chakra you choose so you don't think so much but only the chakra. Some people don't want to do one chakras at a time and that's okay, there is nothing wrong with that. You can lie down and place each of the chakra's herb, crystal, or oil on their location while having a nice and calming mediation. Or you could just sit upright and just focus and visualize or think of the third eye. There is so many ways to open and enhance your third eye and everyone is different and may need otherbways of doing it so they can find one where they feel is best.
Here. This can help you gain some idea of what you can to to enhance your third. Good luck.
Third Eye Chakra:
Character: Visualization, psychic Sight, inspiration, spiritual awakening, wisdom, imagination
Location: Between the eyes (the temple)
Body organs/parts: Skull, eyes, all the sense organs, the brain, nervous system.
Sanskrit Name: Ajna
Key Phase: I see
Vibration sound: SHAM
Oil(s): Camphor, Star Anise, Frankincense, Myrrh, patchouli
Herb(s): Jasmine, Spearmint, Eyebright, Star Anise, Passionflower
Crystal(s): Charoite, Danburite, Tanzanite, Satyaloka Quartz, Herderite, Petalite, Tibetan Tektite, Scolecite, Natrolite, Phenacite.
Stimulants: Star gazing, mediation, indigo food & drink, indigo gemstones and indigo clothing. Using indigo oils such as patchouli or frankincense essential oils.