I feel like my life is nothing but all about feeding this baby.

I am a FTM and I gave a birth to my son 5days ago. Since then, my life is completely changed. I feel like my life is nothing but all about feeding this kid. I breastfeed and pump. I have been up since 12 and he just fell asleep. I fed him 25min and changed his dirty diaper and fed him again and changed his diaper, fed him again and changed his diaper. And still fussy and fed him again. I feel so depressed and feel like my life is over.