I saw this a while ago on someone's Facebook news feed as they (and many of their commenters) were agreeing to the statement.
The fact that this is even a thing goes to show what an impact our negative thoughts can have on our lives and how much we choose the negative as our default pattern.
Why not try something different? Be grateful that your day is going well. Enjoy every moment of it and invite more of them into your life... it's totally possible.
All you need to do is choose a different perspective.