Rhythm is the first step on the training scale. Without a good, forward rhythm then the horse cannot possibly be correctly doing any of the steps above it.
Forward and back transitions, spirals in and out and transitions in general will help you. You want to be feeling a strong, constant, but supple pressure in the reins from the horse's contact. It is not a dead weight, but a live feel. Up to 10lbs of pressure in each hand is OK as long as the horse is forward and in front of your leg.
They say money doesn't buy happiness -- well happiness doesn't buy horses!