I generally don't mind Mondays, but still - anything, any word wich can make a day better is good so I'll adopt this into my own internal "positivitron" part of my brain. :-D
I've recently started comforting myself with the words "I'll do better tomorrow", to help myself to stop dwelling on negative things and events from the past day. Another thing I like to tell myself (over and over) is "it gets better every year". Because it's true. :-)
No single event, or thing, has ever made my life take a turn for the worse - every single year has been better than the previous. Sure enough at times some events cost me dearly and took serious time to process, but BY GOD without them I would possibly never be where I am or who I am.
And I really don't want to be anywhere or anybody else! :-)