It's never too late to become Wiccan. One isn't born Wiccan, one becomes Wiccan because you take the time to study the religion and to realize that it is something which is spiritually fulfilling to you.
To start with, here are some books that I would suggest.
"A Witch Alone" by Marian Green
"The Elements of Ritual" by Deborah Lipp
"Witchcrafting" by Phyllis Curott
"21st Century Wicca" by Jennifer Hunter
"Before You Cast a Spell" by Carl McColman
"When, Why...If" by Robin Wood
"Practical Pagan" by Dana Eilers
"Wicca; A Year and a Day" by Timothy Roderick
You can also find the recommended reading list that my coven uses at: http://www.tangledmoon.org/reading_list.htm
Here's some websites that you may find useful in helping you with questions.
http://www.tangledmoon.org (this is my own coven site.)
Hope this helps you get a good start on your studies. And feel free to ask me if you have any specific questions we can help you with.