ANSWER - It isn't quite as simple as that I'm afraid. If it was everybody would be witches. But its great that you are so interested and have so much enthusiasm. Why not start by reading a few books on the subject and then start doing a few basic spells and see if it is something you enjoy doing and have an aptitude for. I'd caution that becoming a witch isn't something you just "become" its a path you choose to follow and one that will see your knowledge and abilities gradually develop as you progress. There may well come a time on your path when you choose to do a formal crossing over but that isn't something anybody can do for you and it isn't a ritual that gives you power, it is a ritual celebrating the powers you have already developed through your own hard work, learning and practise. I'm very much afraid that there are no short cuts to becoming a witch.