When you focus day in and day out on your challenges in life, they would become very likely to blindfold you from noticing your daily blessings; which would then lead to the lack of happiness in your life.
edmond-mbiaka, focus, noticing-your-blessings, the-lack-of-happiness, your-blessings-in-life, your-challenges-in-life, your-daily-blessings, your-life