Cold peroxide and cold water definitely are the best ways to get out blood stains, unfortunately blood is one of the hardest things to get out of clothing, and other things, especially if it sits. But peroxide will get out most of it If it's white, bleach also works, otherwise, try soaking your sheets, clothing, and bracelets, and scrubbing them for a while. Afterwards, it should be unnoticeable! good luck to you, my dear. And I hope you try to stop cutting.