When all else fails, begin with the end in mind. Thank you Stephen Covey. We get so mired in the problem that we forget to test, and possibly adjust, the outcome that solving the problem is supposed to achieve.
Is the outcome achievable? Does it still make sense? Do we really know what we want? Can we simplify what we want?
And then look at the problem. Things get so much clearer when we begin with the end in mind.
What seemed so insurmountable just became much simpler for me.