New baby sadness

I just had my first baby one week ago. I‘m super happy to be a new mom and love my baby so much. But I also feel very sad. I’m nursing every 2 hours and stressed about not having enough milk come in. She is up most of the night so I am barely on any sleep. Baby is also very jaundice. We’ve had to use a special light on her constantly everyday and we’ve had to go to the doctor every day to have her blood tested and I have to watch her be poked every time which makes me really sad. Like I said I love my baby so much and so happy to have her. but I’m feeling really sad about things not being “normal” anymore and just feeling so stressed out. And I feel guilty for feeling this way and not happier. Is this a normal feeling? Does it get better?