Sleep routine

How do I get my baby into a good sleep routine? She doesn't sleep much during the day. Maybe about 6 hours. She's up for about 3-4 hours in the middle of the night. (I'm literally exhausted!) She's eats 4 ounces. About ever 3.5-4 hours. She's one month old. She still seems hungry, but I don't want to give her too much to eat. I just don't know what to do. And I don't wanna be seen as a bad parent. Kinda stressing about this. 🙁 Any suggestions?