One definition of 'psychic' is "a person who does magical things with his or her mind". This definition is troublesome because the word 'magic' implies something mystical and not understood - this is only an outside view.
Perhaps a more fitting definition of psychic is "a person who integrates subjective and objective realities in order to achieve spiritual progress". Indeed, it is the mastery of the subjective realm which seems like 'unattainable magic' to others.
'Psychic' comes from the word 'psyche' which has several related meanings: the first meaning is 'mind', the deeper meaning is 'soul' or 'spirit', and the deepest and originating meaning is 'breath'.
Breathe with your mind through your soul with open clarity, and you will be a psychic.