As an amateur bedroom composer working in a DAW on my song, I might have a general idea of how something ought to sound, but through endless 'random walking through knob space' - i.e. tweaking different values on the synth while listening to the same part on repeat - eventually I get hyper-familiar with the tune and everything sounds much of a muchness. I reach a point where I think the sound is good enough and leave the project for a few hours. Once I've forgotten the tune, I come back to it and play it from the beginning and it sounds awful.
I'm wondering how professional electronic musicians or sound engineers deal with such effects when they become hyper-accustomed to what they're listening to. These people presumably operate under deadlines, and so taking multi-hour breaks to 'forget' the recent piece of work just can't be feasible.
Is it just a matter of taking regular short breaks and being disciplined about stopping when you can no longer tell if you're making a positive difference? Or are there other tricks involved, like listening to similar/totally different music to 'reset'?