Dark circle concerns

I was really worried about my dark circles and when I smiled, my aegyo skin was too thick and it didn't look good when I smiled, so I tried to get under my eyes, but I heard that they do it in one place, so I asked the director and he said that it would be the most effective eyes, so I went to a place famous for eyes and met with the director. When I asked during the consultation, I was told not to say that dark circles are not for the under-eye area and that it doesn't seem necessary, so should I go to the dermatologist and get brightening? I was told to get something like that, but for those who have severe dark circles, what treatment do you recommend? I get stressed out because my friends keep saying I look tired ㅠ ˃̣̣̣̣̣̣︿˂̣̣̣̣̣̣