One of my favorite things to do is consult my folder of songs when I’m in a bad mood or frustrated and just slip off into the melody/lyrics of a truly great song. Its amazing what a great song can do for you current mood, and in turn your day as a whole. My list in no particular order is:
https://www.youtube.com/watch?v=F2K_7-MHt3k
https://www.youtube.com/watch?v=f6WKfhj1lE0
https://www.youtube.com/watch?v=yVA-xTBeHyM
https://www.youtube.com/watch?v=qu5q_awytxU
https://www.youtube.com/watch?v=bmXumtgwtak