I started doing tarot for fun for friends and family about 20 years ago now. After awhile, I realized that I was getting information and making predictions that were not only accurate, but surprisingly so. The cards would give me an answer opposite of what I was expecting....and they were right! Not only that, but random information would come to me during readings, details that I didn't really directly interpret from the cards, but that I knew nonetheless. It doesn't happen in EVERY reading, but in enough that I noticed it.
That was the beginning of my career....tarot is both a skill and an art. I believe my skill is difficult to surpass and the art of it challenges and delights me every day.