Hi and welcome to SOM, here are some starter links to assist you:
Before you do anything like a spell or a ritual in witchcraft you must know how magick work and what is magick
Also I suggest that you have a look at these books
Wicca: A Guide for the Solitary Practitioner by Scott Cunnigham
Living Wicca: A Further Guide for the Solitary Practitioner by Scott Cunnigham
The Truth About Witchcraft by Scott Cunnigham
Divination For Beginners by Scott Cunnigham
hey Isabelle.. welcome to SOM,as everybody calls it .. im also new here .. um as i have read u cant change into anything and im not sure about features but you are gorgeous ,.. Soo.. Why change anything at all.