Ah, the Wiccan world. I remember those days... [insert nostalgia here.]
What I have learned is that it is best not to dabble in things, but read a lot of sources before practicing any rituals. I'm glad you're looking at more information first

The first major thing to remember about Wicca and Magick is that it is not a cure-all. In order for any kind of spell to work, one must put effort forth. A Wiccan's spell is pretty much equivalent to a Christian's prayer.
Wicca, you have probably read, centers focus around Mother Earth/ The Goddess and the Horned God. There are also those known to call upon help from other gods/goddesses and spirits. Example, if you have a strong calling toward Egypt, maybe the Egyptian gods are your thing. Love Native American culture? Try Native American Shamanism and Totem animals. Ancient Greece? That pantheon. King Arthur? Celtic Druids/Shaman. Vikings? The Norse Gods and runes. The list goes on and on.
The first law of Wicca is "Harm ye none, do what thou will." Revenge and causing pain is NOT upheld by Wiccan ideals. "Mind the threefold law ye should/ Three times bad and three times good." What you send out will come back to you threefold, good and bad. A form of Karma, if you will.
A book I found helpful in getting more ideas about Wicca was
Solitary Witch by Silver Ravenwolf. It's a Book of Shadows that has a LOT of information in it. Gem properties, herbies, spells, history, pantheon lists, and a LOT more. Once you narrow down your calling you can find specifics on those. I personally am drawn to Native American Shamanism with animal totems and the like.
If you need a source for books, a good one is at
http://www.innertraditions.com/Or you could also do what I did for the longest time and go to your nearest Barnes and Nobel or Books-a-Million or other large bookstore and read books in the New Age section until you can't see straight

If you have any other questions for me, feel free to PM or hit me up with an e-mail at LeeLindseyErin@gmail.com.
And everything I told you is my entire life's experience in a nutshell so small I can barely see it

Very broad.