The key to finding natural rhythm is familiarity. Emulate the pre-round practice routine that the greatest golfer of all time, Jack Nicklaus used in his prime and still to date sticks with.
Prior to a round of golf always use the same six clubs, starting with the sand wedge, then the 9 iron, followed by the 7 iron, then the 5 iron, followed by the 3 iron and working the way up to the driver.