Seeing them all in one place was very revealing. I was able to ascertain themes about me that were apparent from these songs. I wonder if an exercise like this could help you learn about yourself too. I think this is an important part of learning who I am as a person, and as a singer.
Here are some of the themes I've detected in "my" songs:
Unlucky in Love
Never Give Up
Carrying on Through Difficulties
Light at the End of the Tunnel
Keep on Believing
Staying the Course
I've decided think this kind of inventory can be very useful in finding out just what kind of singer a person is. I did a similar thing one time when I listed all the self-help books I owned.
What kinds of things can you find out about yourself by studying your songs?