Weird indentation in upper lip/lips when I smile. How can I fix this?

As you can see, my lips are very unattractive. I have a small narrow upper lip which droops down and has a clear outline around it. When I smile, my top lip essentially inverts and forms these weird indentations opposite of my philtrum in my upper lip (as you can see). I guess my phitlrum is very wide. I want to know why my upper lip/lip are formed this way when I smile, why they droop down and have an outline, and what I can do to fix them.