everyone finds their unique, personal way to the Tarot, so follow which ever advice rings true with you... none are right or wrong..
connecting with the Tarot, and a particular deck is a wonderful experience..
contrary to others: I find a very detailed examination of each card interesting and deeply connecting for me;; may take days or weeks to go through every card..
::I look at each card ,noticing every detail (I use a magnifying glass for decks with lots of detail, Waite, Thoth etc.)
if you connect with that deck, the process becomes a cherishment, savoring
then do something to make the deck yours personally.. such as sleeping with the cards (in a bag or box), nearby ;; or smuging with incense, or place on your altar or something similar may work for you
..
if you contemplate 1 card before sleeping, you will often have dreams associated with the meaning of that card..(place the card nearby (if under the pillow, I place it in something protective))
when studying a card; I don't go on until I feel that I've really absorbed it (with Thoth some cards took days, since I looked up all the various/wide/deep attributions) and sometimes a multiple pass approach works better (first time just go through quickly, just look at each card enough to distinguish it from other decks then go on; on the 2nd pass you can look for more details, symbols and thematic links between the cards within this deck etc.
it's not a race, enjoy the process