Aw! Those days are difficult, but the great thing is, it's only one day, tomorrow you can start afresh. How do I deal with these sorts of days? Well, I tell myself the sentence above and then I think what can I do that will make me feel better? That can vary, sometimes it's curling up with some hot chocolate and a good film or box set, sometimes it's getting out for a walk, sometimes seeing a friend who will make me laugh. In your immediate case, it might be thinking of a friend who will let you use their shower 😎!
Hope you feel better soon 😍.