Ok, so you want to be a witch. Awesome! Oh, you want me to make you a witch? Sorry, it doesn't work that way. Nobody can make you a witch but you. No coven High Priest(ess), not you witch mother/grandmother/etc., not the author of any book, no one.
Becoming a witch is a personal journey. Sure you might have a teacher (like a High Priest(ess) or someone who has been practicing for years, but they can only help you and guide you along your path based on what THEY know. Every witch is different and the practice of every witch is different. If you put 10 witches together in a room and asked them about their personal beliefs, the tools they use, their altar setup, the deities they align with, etc., you'll probably get 11 different answers.
If you really think you want to be a witch, here's my advice:
Go to your library and check out the books on witchcraft, borrow them from witches you know, or order some from Amazon or Ebay (you can find amazing deals online). If there's a local coven, talk to the High Priest(ess) and ask if they offer classes. If you don't know about any local Pagans and witches, check out witchvox.com and you might find some in your area. There are plenty of websites that you can learn from, also.
But, no matter where you get your information from, keep in mind that those are the beliefs of other individuals. It's perfectly fine to take what you read and apply it to your own practice, but you don't have to go strictly by the book with everything. You should read everything you can by as many authors as possible so that you can find out what is really true for you. Whatever you read, don't take it as the one and only way. There's a lot of information out there from so many different perspectives, and the important thing is finding your own truth and forging your own path in life.