Congrats on your first tarot deck, @stefani! 
Praecog29 and Saulamay gave some great advice. A cleansing ritual or leaving them out under the moon light (any phase will work, but the Full Moon will be the most potent for cleansing and charging) are wonderful ways to cleanse the deck.
Connecting with the cards takes time. Sleeping with the deck under your pillow is a great start, and to follow that I’d recommend doing a Daily Draw- drawing one card every day to build a bond.
You can find some more advice about cleansing, connecting, and beginning your journey with self readings in the following post:
Happy readings, Stefani! 