I'm not Wiccan but I am a practicing witch. I do candle magick all the time and get very good results from it. Just be aware that it may not come out exactly the way you think it will.
For instance, I have a spell going right now for Peace and Harmony within my family. I won't go into a long sob story but my aunt promised my nephew to stay with the family in Boston and the Cape for his graduation present. He was packed since May. She never told him of any changes. The day before his birthday - which she had promised would be celebrated at the Hard Rock Cafe - he unpacked his bags while struggling not to get emotional.
So far she is trying to reach out but my sister and nephew aren't ready to hear from her. I was the messenger who told her what was going on and the reamed me royally as well as bringing my mother into the middle and throwing in our faces every thing she'd ever given us.
I'm beginning to believe that peace and harmony among all of us will be achieved by keeping our distance from her. She's been bullying us for quite some time as she has quite a lot financially and we're struggling to stay above poverty.