Horizontal belly button AKA “frowning face belly button”

Hey guys! I was wondering if anyone knew good exercises or tips on making my bellybutton look a little more normal. I am 5,5” and weigh around 140lbs. I’m not sure if my bellybutton shape is because I have a little extra fat or if it’s just something I’ll have to learn to love. It may seem stupid but it’s always been one of my biggest insecurities. Wearing a cute crop top or even going to the Beach, my belly button always made me feel like I couldn’t wear certain things... :/