At this point just take a big break man... 1 week chapter 1 not is not the way to go.
I imagine he thinks that ,if he stops he won't be able to pick the pen again to write. It can't be explained otherwise. Even the yesmen of Shueisha must have seen it by now how this it is not the way to go onwards.
in a year or so he will end up writing 7 pages or so like how Morikawa was doing for Ippo and in the end he was forced by the circumstances.