Well, the first good thing to do is to express my trouble here at PC and being comforted by good friends
Thank you all for being there

Yes, I need rest. Not the complete solution, but I slept too little this week. Since I have time tomorrow, I will try out your suggestions.
The ironical part is that I still have chances to do meaningful things, the type of creative activities that make my life worth living. But I may be stripped of the needed enthusiasm at any moment (I feel it's fading as I'm speaking). Well, I suppose only time will tell.

BTW, the frog's weather forecast is reliable, it is really flooding out there

Well, thank you all again and I'll keep you posted.