I don't know any quality diviners who have gotten wealthy from performing readings for people. If this is the first reading of any type you have had, explain this to the reader. An approach from that perspective indicates that you are unreceptive to an explanation of the realities of divination or you are incapable of recognize that that is a question you have to answer for yourself. If you consider a reading inaccurate, politely tell your reader. It may turn out that there was some other issue you did not happen to think of at the time.
Some readers have off-days, and few are directly clairvoyant.
Unfortunately, it needs to be said. I cannot count the people that have acted absolutely moronic over a deck of cards with funny pictures. On the other hand, I've met many more people who are genuinely curious and who enjoyed talking about divination and how it can be incorporated into a lifestyle without depending upon it for decisions.