I find joy in 'moments'.
Hopefully at the end of the day your good moments outweigh the negative.
You can set the threshold pretty low too.
For me, it can be a song, seeing the sun cast lances of light through clouds, a brilliant blue sky, a particular taste or food, a breeze carrying a particular scent (not the dairy farm down the road) making a stranger smile, making my kids laugh, thwarting a bank robbery ... that sort of thing.
An aspect that I have explored during this journey is the concept of service to others. The simple notion being that by taking the focus off of yourself and giving 'gifts' to others be they simple gestures, acts, contributions of time or money, or actual gifts, that you personally reap tremendous dividends and pretty much become a better human being by default. I adopted this as part of my 'work on yourself' efforts.
I was pleasantly surprised to hear this topic discussed on NPR not long ago: The Gift of Giving | WBUR and NPR - On Point with Tom Ashbrook
I have a small book at home that helped me rediscover this concept shortly before the proverbial sh!t hit the fan in my marriage. I believe the book was called "Living your Life On Purpose". It is not the Rick Warren book. I will confirm the title and author tonight. It was one of those tiny books that for me, just had a huge impact. I specifically at the time was trying to reinforce the notion that being selfless in my marriage would ultimately make everything work out.
I've adjusted my philosophy a bit since. ;-)
Here is a nugget that I sincerely hope that folks can make use of:
recognizing that you have ownership of, and can create your own moments of joy, no matter how brief, is simple and empowering. It's a choice - a choice you want to continue making for the rest of your life.