Read everything you can. Understand the basics of the Wheel of the Year, the Sabbats, etc. There are some great books available.
There used to be lots of excellent Wiccan study websites. They're harder to find these days, but there are still some good ones out there if you are prepared to search beyond the first page of Google results.
Nicole Canfield has a fabulous collection of articles right here on Exemplore: https://hubpages.com/@kittythedreamer.