I think there are two reasons to say fuck Sunday, one is dreading the work day that's coming up because it stresses you out and you hate it. Which I think is what you're talking about.
And the other, which I feel the website is talking about, is dreading the fact that the weekend is over and you haven't done any of the things you wanted to use the weekend for, such as working on your personal projects, hitting the gym, getting that cabinet in order, finally putting a budget together, etc. Which comes to you with a feeling of guilt and having wasted the weekend and your time.
You can obviously have both feelings at ounce, but I think you can also only suffer from one of these. I for example enjoy my work, but I have that latter feeling which is that none of my other goals are being worked on and met.
The other aspect I wanted to share, if it helps at all, is... it’s truly fine to waste your weekend, or to be unproductive and do nothing. There’s so much stigma attached to that, and almost every system in a capitalistic society would have you believe it’s a terrible sin or that you’re less of a person.
But I get that your point is more along the lines of “I just wish I had time for everything I wanted to do.” For whatever it’s worth, the feeling doesn’t go away. I feel guilty about not being as focused as I could have been yesterday, for example, and it’s hard to shake the idea that 24 hours are simply too few.
I should probably stop here, since the obvious reply is “yeah, that sure sounds like an awful problem to have, with all that time available to you. /s” which is entirely valid.
But! You can get it for yourself, depending on what you can exchange for it. In truth, my laptop’s internal keyboard has been dead for four years or so. I just bring an external everywhere, since it’s $500 to fix.
Unfortunately parents don’t have the luxury of simply choosing to save up money and then take a year off work, because the cost of family often scales with time. So, those of you who have children and still manage to do a lot of other things: you’re real heroes in my eyes. Fuck Sunday!