What should I do with my upper lip? It covers my upper teeth when I smile naturally. (photos)

Hi. I have a problem with my upper lip, I think its not propotional with my bottom lip, as you can see my upper lip is bigger and thicker. When I smile naturally my upper lip will cover my entire teeth and I think my teeth are not small, they are in normal size. I am not comfortable and conscious everytime i talk to someone or smile. Do you have any recommendation?