I agree with every comment on this thread. We are guided to the areas we need to explore. It's where your enthusiasm lies. Sometimes you have to explore areas that aren't right for you so that you know what is not your cup of tea. When you are reading about another path, you can compare and contrast, see the similarities and differences from the path you ultimately choose. I never really studied Wicca or wanted to be a witch but I did read a bit, for entertainment purposes only. There are some concepts that I use. I didn't learn it from the books but I was able to look back and see the common principals.
I was guided to learn astrology and it was an obsession for a couple of years. This was before I was aware of my 'guardians'. They were there prodding me along but I did not know it at the time. I always wanted to learn the cards, but just never worked for me. Sure I can give myself a simple reading but I don't deeply understand the meanings of the cards. It just wasn't how I was meant to approach the symbolism.
The funny thing about learning astrology was that my goal was to be an expert astrologer and become certified and be legit, but that wasn't the plan. I had to know how to work with that energy. I use it for magic, and as a map of the psyche. I took classes for a while, until it was time to quit because I had learned all I needed to know. It's a tool, not my 'job'...
I think your dream was very significant. That's really your guides showing you that you are right there. Opening the door is a big step. Do you want to open it? Maybe just look through the keyhole for now.
My 'Guardians' taught me everything I know, or they showed me where to look. They taught me a system that is complicated and not typical, but it's just a unique way of working with the same stuff.
Everybody is different, but the spirit world likes to provide clues. So that is mainly through intuition, but also pay attention to synchronicity. Everything is synchronized, and the words of others and your own words can bring you guidance. Also, the songs you hear on the radio, or the snatches of overheard conversation can be meant for your ears. Just like the indians would listen to the wind, we have our clues.
That's why writing is important. scribbling thoughts, doodling, whatever...Sometimes you'll find meaning, and when you look back then what you wrote before, might bring you more understanding. It's also handy to be able to know what you were doing last month, or last year....
Meditative activity, like coloring in a coloring book, or playing a casual online game, doing a puzzle...anything that engages half your mind while allowing the other half to wander.
I think that everybody has a different purpose for going down this path. There is a job you are supposed to do and maybe that is being a great card reader and helping people understand their life circumstances. Maybe it is something else. I hope that your 'job' is fulfilling and rewarding and that it brings you joy.