It depends how you became a psychic medium; if you had a mentor, they will probably want to keep an eye over you for a while, just till you feel comfortable on your own. Even if you've come to this realization on your own, it can be helpful to get advice and guidance from an experiences psychic. In some cases, your clients might only trust you if you are known to have been mentored or guided by an experienced and known psychic.
"Mental mediumship" is communication of spirits with a medium by telepathy. The medium mentally "hears" (clairaudience), "sees" (clairvoyance), and/or feels (clairsentience) messages from spirits. Directly or with the help of a spirit guide, the medium passes the information on to the message's recipient(s). When a medium is doing a "reading" for a particular person, that person is known as the "sitter".
Mediumship became quite popular in the 19th-century United States and the United Kingdom after the rise of Spiritualism as a religious movement. Modern Spiritualism is said to date from practices and lectures of the Fox sisters in New York State in 1848. The trance mediums Paschal Beverly Randolph and Emma Hardinge Britten were among the most celebrated lecturers and authors on the subject in the mid-19th century. Allan Kardec coined the term Spiritism around 1860.[12] Kardec claimed that conversations with spirits by selected mediums were the basis of his The Spirits' Book and later, his five-book collection, Spiritist Codification.
In 1918, Joseph Jastrow wrote about the tricks of Eusapia Palladino who was an expert at freeing her hands and feet from the control in the séance room.[121] In the séance room Palladino would move curtains from a distance by releasing a jet of air from a rubber bulb that she had in her hand.[122] According to the psychical researcher Harry Price "Her tricks were usually childish: long hairs attached to small objects in order to produce 'telekinetic movements'; the gradual substitution of one hand for two when being controlled by sitters; the production of 'phenomena' with a foot which had been surreptitiously removed from its shoe and so on."[123]
The suffix Voyant in Clairvoyant does not necessarily imply seeing pictures, graphics or pictorial presentation as such. ‘Seeing’ may also mean  ‘understanding’ like in ‘Oh, I see!’ In this context the ability of the clairvoyant medium may also include clairsentience, which means that the clairvoyant medium clearly senses the things and the situations. He experiences a kind of gut feeling about what is going to happen or how a situation can be best tackled to provide good results.
Senses used by mental mediums are sometimes defined differently from in other paranormal fields. A medium is said to have psychic abilities but not all psychics function as mediums. The term clairvoyance, for instance, may include seeing spirit and visions instilled by the spirit world. The Parapsychological Association defines "clairvoyance" as information derived directly from an external physical source.[37]