Here are some, not all, but some of the laws of Wicca that I follow, you might want to try them...
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-The first rule of Wicca is harm none...because anything that you do to someone else will come back at you three fold.
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-The second rule is galmmour none...dont copy other peoples spells, first of all that is very rude and second of all it wasnt written by the caster so you will be really lucky if it works.(heres a tip, if you get a spell from somebody, change it around a bit like the wordding or something like that)
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-The third rule is use your magic for as little personal gain as possible...if you want a spell to work for you then ask a friend to do it.(by the way...don't bother with spells that help you 'slim down' or beauty spells, you should never use magic to alter your apperence!)