I have some bad news
Not every day will be filled with rainbows and unicorns.
There will be times when things small and things significant will go wrong and they will make having a good day problematic. Whether it's the dog escaping the yard or barking incessantly at the squirrels or whether it's the co-worker who won't stop talking and let you do your job, external frustrations happen.
Further, we all make mistakes and those self-driven events can contribute to making a good day worse too. We aren't perfect at our jobs or with our friends and we screw our lives up. Sometimes it seems our mistakes are near-catastrophic.
Have you ever noticed though, that we often learn good things about ourselves when things are hard?
We can learn how to avoid what caused the bad.
We can learn to prevent them.
We can learn to deal with them.
We can learn that we are not alone.
We can learn that they can be overcome or mitigated.
Opportunities to learn are hidden in the hard and the bad. Looking for those lessons can make today a good (or better) day.
What makes up your bad things and struggles will be different from everyone else's and the lessons we learn will be different but the important thing is that we *look* for the lessons and take them to heart.