Fair enough - I wonder therefore if it is potentially a question not of how one prepares for applications but how one studies? I had friends whilst I was still at university who had similar issues, but found instead that it came as a result of studying inefficiently. I can't pretend to know what your degree is or uni is, but surely they must not have an expectation that one needs to work any more than max 9-7 ish Mon-Fri.
Then again, there's no one-size-fits-all, but based on how successful you seem to have been so far in your applications, you must be doing many things right!