Only 4 of my teeth show when smiling and I don’t know what I can do to fix it? (photo)

When I smile it’s so small and unglued. Even when I talk my teeth barely show or maybe the front two. I don’t know if I need jaw surgery or something to change it, or if braces would fix the problem. I just want to have a nice smile and not creepy. Thanks for any feedback you can offer. I had lip fillers done 7 months ago if that helps I noticed smile was a bit smaller, but still was similar before.