What is Greek goddess Psyche goddess of?

Psyche was a daughter of mortals. She had two more sisters. Cupid, the god of love, fell in love with her. They had a daughter Hedone/ Pleasure.

Psyche, the soul of humans, was exploited by the philosophers of the ancient times as well as by all religions. The majority accept that Psyche is immortal.

Soul.

Supplementary answer

Psyche never was part of Greek mythology. The Word is Greek for soul (as in psychology). Not until about about 160 AD does Psyche appear as a person, and it was in a piece of Roman fiction. The Roman philosopher and writer Lucius Apuleius wrote a long story called The Golden Ass. In this an old woman tells about Cupid and Psyche and in her tale Psyche is taken into the company of the Greek deities, or rather their Roman counterparts.

In Roman mythology, she is the girl whom Cupid fell in love with. She is said to be beautiful than Venus, Goddess of Love and Beauty herself. Since Venus wont stop in making Psyche suffer, Cupid ask Zeus for help and make Psyche as a Goddess. Goddess of soul.

I don't get why there's all these answers for where she came from. Psyche was the goddess of the soul, and that's the answer to the question.