Other than the above notes, get rid of the 1 bottle mate, ie use a separate wash and a separate wax. A combined wash & wax is nowhere near as good imo.
Also use 2 buckets - 1 to rinse your wash mitt in before you put it into the soapy stuff.
Finally, get rid of the chamois and get a Megs water magnet. I'm guessing you're using the wash mitt so you don't get surface stuff over your paint rather than using a sponge. A chamois does the same thing a sponge does, ie keeps it on the surface of the chamois which means it goes all back over your paint and can cause swirl marks & fine scratches.