Baby's weight

I know this sounds awful, and I'm EXTREMELY thankful my baby is healthy...but I'm kind of sad how big she is. I feel like I didn't have a newborn because she's so big and chubby. She was born 8 pounds 9oz. and is now 10 pounds at 4 weeks. She is constantly hungry and eating anywhere from 6oz. every 3-4 hours or sometimes less. 
It really makes me upset when people say how chubby and big she is and I'm jealous everytime I see smaller babies that are older than her :(