One of the many factors that separate amateur tarot students from the more serious tarot reader/scholar is the use of dignities (the relationship of cards in a tarot spread) andcorrespondences (relationships of tarot cards to other disciplines). Elizabeth Hazel’s Tarot Decoded does an excellent job of marrying the tarot with astrology primarily, but also discusses numerological influences of the cards as well.
I use my tarot journal every morning to plan my day ahead. How do you use your tarot journal? (You can get a PDF printable to make your own tarot journal as a Midori or fauxdori-sized insert in the Learn Tarot With Me shop).