Gratitude and focusing on it can help to boost the positivity in your life. Its good for your wellbeing, as well as your overall wellbeing.
There is a great TedTalk on this topic, which explore this further.
Here is a blurb for the video
“When a psychologist who studies well-being ends up with a brain tumor, what happens when she puts her own research into practice? Christina Costa goes beyond the “fight” narrative of cancer — or any formidable personal journey — to highlight the brain benefits of an empowering alternative to fostering resilience in the face of unexpected challenges: gratitude.”