Crystals and spirituality

Hey y’all I grew up Christian but I’m now 21. I definitely do believe God exist but I’m also feeling a huge pull to the spirituality realm of things. I’m very interested in learning more about it and being more involved in that. I’ve been wanting to get some crystals but didn’t know where to start or what to get. I do also have tarot cards and a pendulum and a book on tarot readings. What would be some other good items to get as a beginner and things that would help me learn more about this?