learn some marlo. it helps. read a book
you dont need criss angel type magican super coolio illisions to be a good magician. a REAL magician will stun people with a few double lifts and a force... just because you want a new "challenge" doesnt mean you cant work with what you have already. pick up a book. read some marlo, or le paul.. Great places to start!
I highly doubt that back in the day, marlos main effect was a card through window, or levitation... or.. believe, although, he may have been miscredited for moth of those. lol.
just speaking my thoughts.