Really, the only way to decide it is to just be in tune with yourself, perhaps meditate on the subject, or pray for guidance. The answer might be subtle, or it may just smack you in the face. For me, the subject of Wicca started coming up EVERYWHERE! Every show I tried to watch on tv mentioned it. I’d open up random books at my school and local libraries and notes on wicca and witchcraft would fall out. I’d go to garage sales and resale shops and find books on wicca. and I realized that it was the universe telling me what I was supposed to do. But I realize it’s not always that obvious. Should you decide to take the leap, my all time favorite book on the subject is Where to Park Your Broomstick by Lauren Manoy. It’s geared almost exclusively towards teens, but it’s got a lot of really good information. I’d also suggest Solitary Witch by Silver RavenWolf for a general source of information and reference. I also suggest To Stir a Magick Cauldron (also by Silver RavenWolf), it’s not wicca 101, but it has “lessons” in it, and it also contains a Wicca 101 test with information that most witches should know after their first year of study. I’d also check out Witchschool.com, which has online classes, if you’re interested in that. For herbs alone, I’d suggest Magickal Herbalism and Cunningham’s Encyclopedia of Magickal Herbs, both by Scott Cunningham. If you’re very interested in herbs, try checking out books on their medicinal uses as they often go hand in hand with magickal uses. If you have any other questions, feel free to ask. :)
Write something about yourself. No need to be fancy, just an overview.