Do babies learn to sleep at night on their own or am I just screwed

I'm a FTM of a 2 month old and I wanted to start working on a sleep schedule before I go back to work next month. I'm only 3 days into it and im already about to give up. I do my best to follow a schedule, give her a nice warm bath and bottle before bed, make it dark and have a white noise machine. But it feels like she's awake at night even more than she was BEFORE we started. We're exhausted and frustrated and I feel like a failure already