I love coin magic, but it is definately something difficult, once you get coin magic down you have a solid basis for magic in general, I encourage you to keep practicing.
however I have to be honest, it does sort of anger me that you decided to do this routine knowing that you cant poform it well. Unlike cards, with coin magic you realy have stare at your hands in a mirror and ask yourself does that look convincing?
what iam trying to say is dont disrespect coin magic, if you like the routine then practice it. Doing a half baked presentation of a clasic effect like this one is truly a shame
dont take my comments to harshly, keep trying and reach your goals