Welcome! There are a few things on this site about the basics. But some other places to check out would be www.witchcrafted.org and www.witchschool.com which I highly recommend. The witch school one is an online school site on witchcraft and Wicca. It has several basic classes for free that you can sign up for. The first site I listed though has lots of good info and a mini lessons page.
First Join a guild it will help you learn thing, I recommend that you don't join one over 100 people.
Secondly read Newbie tip something like that.
Finally gather information about what magick you want to learn.
And by the way dont pay attention to what wind element said, a guild is a medieval term for a an association of people for mutual aid or the pursuit of a common goal, typically for money and not a term associate with magic or used sinc the middle ages, with a appropriate meaning anyway, and they usually would have way mor than 100 people, whell ok reading the newbie articles on this site is a good idea, and now to the wrongest part of what wind element said (and I quote) " Finally gather information about what magick you want to learn" where do I even begim magic is magic it has no kinds it difers on how you use it but all works the same, so wind element is abiosly a fluff who watches way to mutch (judging from him using the term guild and thinking that magic has diferent kinds) fairy tail (a cartoon series, its actually prety good for a cartoon I sometimes watch it when I have absolutely nothing batter to do)