Remember the point of being alive is to Live. Sometimes, we have to really put some effort into feeling good and appreciating the majesty of Life itself. We all have those days. But even small moments of great appreciation and heart-felt wonder build up and make our lives richer. So, it's worth the effort, every day.
To quote a line from one of my favorite Jimmy Buffet songs, "I'd rather die while I'm living than live while I'm dead."