New to ruins

So I’ve heard a lot about ruined orgasms. I’m thinking about doing one myself. Can someone give me advice on how to do it well or explain it in full? What’s the advantage of doing it? I had an idea that if I ever go over the edge I should ruin instead. Is that a good strategy? Sry for all the questions female orgasm denial Get your own Orgasm Control toys: For men: http://www.amzn.to/1V6XQvv For women: https://ift.tt/1UWn54n