According to me,I don't need any spell to change you into a witch.When I first find about this I thought that there is a spell to change me into a witch.....Then I learn that witchcraft is practiced by Universal law(energy).So anything you want to know about witchcraft is EVERYONE can be a witch.And by the way are you Vietnamese?
You don't become a Witch by casting a spell. You become a Witch by studying, practicing, and doing the hard work to master the necessary knowledge and skills. This doesn't happen overnight, it is a lifetime journey. There are no shortcuts in this.