tom as the above person says the best thing you can do is spend some time reserching and learning theres a multitude of books you can get (your local librarey may even have some)and internet sorces(but be careful remember any one can post anything on the internet)after you have learnt as much as you can then is the time to start practasing i myself have only been involved in the craft for around a year but what i have learnt i will always hold close and i will continue to learn
blessed be