Olive we have are going through the same thing & i can't handle it either.
We are trying to do only 3-4 feeds a day & when she starts pulling at my top i usually get up & find something else for us to do read a book, go outside, put music on anything to take her mind off boobies and it's working so far.
We have gone from demand feeding to having 3-4 feeds a day & now we are doing that K's eating has picked up & she is almost sleeping through which is huge for us considering she was waking every 3 hours for booby.