Looking For Some Help Breaking a Habit

I'm looking for some tips in order to break a habit I have. To put it into a context that's easier to understand I'll start with this, when playing ADC it is common to "Orbwalk" to kite. You right click or attack move on the enemy and then right click where you want to kite towards. For some reason I have subconsciously been doing this on Cassiopeia with her E, Twin Fang. The issue with this is for some reason instead of using quick cast with her E and just hovering the enemy I developed the habit of right clicking them at the exact same time I press E.This works okay, however while watching my replays I sometimes auto attack before casting my E. This doesn't allow me to take full advantage of my low e cooldown because I have to cancel an auto animation to use it.

TLDR: I'm right clicking on enemies with Cassiopeia's Twin Fang ability instead of hovering and pressing e with smart cast. This makes me auto attack.