Self-weaning before the age of 1 is highly unlikely. I am right in reading that you are only feeding 3 times a day..
the first is breastfeeding and the other 2 are from bottles. What times are you feeding.
Can you let us have a look at how many feeds and when you are doing them.. might give better insight.
Are you wanting to reinstate the afternoon feed with breast and try to ditch the bottle?
Sorry, more questions, but hoepfully it might help find some answers for you.
Alex