I can't do this trick either, but I am able to do one or two rounds of it. So I think I can get you some tips. First you have to manage the suicide while holding the string in your right hand, and one of the sticks in your left hand. And don't forget to start the trick with a right wrap. I think the trick comes after a lot of pratice. That's all I can tell you, and I hope that helps.
Chloé.