I don't look at all like i did when i was younger? much less pretty?

when i was younger, like ages 4-8, i was naturally very thin. i had pretty straight blonde hair and big blue eyes and a flat button nose. now i'm fifteen & i'm not super skinny anymore, my hair got darker and it isn't naturally straight and it won't grow! but that's not my big issue. my big issue is that my eyes used to be soo much bigger and my nose has grown to be pointy from the side view and a little bigger in the front? why do i look so different?! even my chin is much more prominent and pointy then it used to be. i just wish i had the features i had when i was younger :( why do they change? my eyes even looked bigger a year or two ago then they do now!