I feel like I’m drowning

I had my baby 3 nights ago. Today we finally got to bring her home and it finally set in that I’m going to be doing this mostly by myself. She sleeps all throughout the day and is most active at night. I’m pretty good about getting her back to sleep but it’s such a hassle. I know baby’s are hassles and hard work but I get so overwhelmed that I freak out. Since giving birth I’ve slept under 10 hours and so has my boyfriend. My boyfriend works the night shift and goes in tomorrow night. I have support from our family but I just feel like I’m drowning. I love her so much and I don’t want to feel like I’m failing her. Any advice for those mommas out there who are going through the same thing I’m going through? I’m so scared to do this alone.