Meditation has nothing to do with being a psychic, stripped of its religious connotations meditation is actually a form simple light self-hypnosis.
I use it all the time to help control my bi-polar disorder, it is easy to learn and very effective simply google therapeutic self-hypnosis.

The majority of psychics are self-deluded, but utterly sincere people, professional psychic are for the most part confidence tricksters and charlatans.
The existence of "real" psychic powers is up for debate and the pieces of irrefutable evidence are few and far between, but when found do not prove the existence of the popular forms of so called psychic, but rather indicate that the subconscious mind is capable of much more than previously believed in bringing about what is commonly called instinct and intuition by perfectly explainable means.