I'm sorry that you've tried alternatives and they haven't worked well. They don't work well for me either, but they do work for some. I know that it's hard to get through the urges, they tend to stay on your mind for what seems like forever.
All I can say now is try your hardest not to give in. Remember though, even if you hurt yourself, it doesn't have to be the start of you hurting yourself again and again, people have slip ups.
Good luck to you this week.