No disrespect intended, and a serious answer to your question: People have been attempting to prove or demonstrate the existence of psychic powers for as long as the human race has existed. It has never happened. No one has ever been able to establish that any such abilities exist. This means that if you spend either time, effort or money pursuing such things, you are wasting one of those precious commodities. That's just simple logic. No lecture, no disrespect, just logic.