Lines under eyes??

Anika

I'm 14 but. Had the lines for as long as i remember, there not wrinkles or anything, they're natural lines and i've seen a few people have them anyways but every time I search them up on the internet it comes up with wrinkles BUT I KNOW IT AINT WRINKLES

Anyway heres how they look

(Sorry if they were badly done) Does anybody know what these are called or how to get rid of them