When you laugh loudly

<이런식으로 웃을땨 엄청 환하게 웃어지는...????>



<When you smile like this, you smile so brightly...??>My mouth is really small... I have big eyes and cheeks, so my mouth looks even more small ㅠㅠㅠㅠ Especially when they smile, if you look at Hae-rin and Kim Yu-jeong, they both seem to have small mouths, but they are so pretty when they smile, but when I smile, they are almost horizontal. Because it doesn't stretch... On the contrary, my upper lip curls and becomes really red. Is this the solution to the same problem?
I'm really desperate ㅠㅠㅠㅜ I think I could get lip fillers, but my mouth is small to begin with... the inside of my mouth feels small... and my chin is short, so it's a bit weird to get too many, and I don't like big lips either...
 Botox and fillers at the corners of my mouth, and the face. Will it get better if I lose some weight...?? If you look at the picture, both of them have pointy corners of their mouths. Is surgery the only solution? Oh, and is it okay if I post a picture of a celebrity...? Because I don’t know ㅠㅠ