Affirmations are thoughts put into words either written or spoken and they are born or come from the mind. Emotions on the other hand has nothing to do with words or thoughts. Energetically the affirmations are related to the three upper chakras and emotions to the three lower ones. Both need to merge in the middle chakra located in the heart in order to create outside of us.
That’s why an affirmation without emotion doesn’t work neither the opposite. The marriage between both need to be done.
See the following video from Gregg Braden: