K.B.
Hi S.! I have a 15 month old son and I have these same issues with him sometimes. I've found that the tantrums are more out of frustration that "I" want to feed him. He wants to work the fork or spoon. Since she eventually is feeding herself you could try giving her a spoon or fork (which ever is most practical for what she's eating) and see if this helps. Even though he does it on his own...he still needs my help getting some of the food on the utensil. I've established a motion for him to tell me when he's all done. So after he's eaten some and seems to be getting fussy I motion and ask him if he's "all done." If he responds with "our motion" (arms out to the sides palms up), he gets to get out of his highchair. He knows this means meal time is over. He won't motion unless he's done eating. It's worked for us so far. Not saying we don't have our moments either...but it's not very often. I hope this helps some for you! Good luck! :)