Learn to look around and appreciate the beauty in all you see.
If you constantly look for what you are missing, you will feel dissatisfied. If you can appreciate the simple things, contentment will follow.
List the numerous simple things around you that bring you joy. Most of them are free or very inexpensive. Enjoy them. Appreciate them.
As we learn to appreciate the simple things in life, we will begin to be thankful. If we can take our eyes off what we don't have and see the things we do have, our attitude will change.
Just as different camera lenses can adjust the picture, we too need to change our lens so that we can see our life in a different way.