You're going to want to learn what we call the basics. The basics are aspects considered fundamental and/or neutral to any path. There are posts on the subject, however, I find some to be path specific, as Witchcraft and general Paganism are a large part of this site. You're also probably going to want to familiarize yourself with different paths to get a feel for what you would like your path to be (it does not have to be one set path, but please; if you're going to be eclectic, understand what you are taking from in it's original stance). When researching, cross referencing and validation of sources are your best friends. When it comes to Magick, intuition coupled with research will be your best friends.
Excellent advice plus if you go into the 'home' section you will find 'newbie central' which has lots of info and advice on how to learn the basics. There are also many articles on the site which are very informative.