Milk flow from the breast tends to be slower and needs more effort to drink from. You should change the bottle teats to the slowest flow one to mimic the flow from the breast. Breastfed baby should not follow the changing of teat chart. They should always use the slowest flow teat.
You can try not to be the one giving bottle to baby and only latches. So that baby will know that with you he can only latch, he will not get the bottle.
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