Ok. Firstly, it shouldn't take 42 seconds to get through the intro. You don't need the name repeated every other sentence, it's annoying.
The basic trick itself is sound, but your handling is overly convoluted. Try to re-examine the sleights you're using and see if you can't minimalize it more.
Rehearse your script more. I realize English may not be your native language and that creates difficulty, but you stumbled a lot and seemed like you were trying to make up the script on the spot. Rehearsal will reduce or eliminate that.