When you throw the cards a lot you're going to see many of the cards over and over again. That is normal. There's only 78 cards in the deck.

A tarot reading is for guidance and information. The card and its position defines its meaning. If a card keeps coming up it simply means you're still working with that card. How or at what level you're working with the card can differ if the card is moving around in different placements. Sometimes the card comes up in the same place because you are still working it at that level.

Try pulling less cards less often. It is possible to overdo it and end up spinning your wheels getting nowhere and not really learning how to use the cards in your life.