failing

I feel like I am failing at this. My babe is 1 month old, almost 5 weeks. She doesn't sleep through the night. She sleeps from about 1030 to 1230 am gets up to eat, sleeps again until 330/4 and finally sleeps until about 630. She's a great baby, is getting pretty routine and is just the light of my life. I just feel like I'm failing. My mother came over yesterday and critiqued everything in the house. like how the kitchen was dirty (fiance and I have a deal I cook he cleans it up). She tells me about how "you're home all day you should be cooking, cleaning and taking care of the kid ". I said uhm the 1950s called they want their ideals back. but now I can't get this idea that I'm failing out of my head. it's bad enough I had a break down tonight. I'm a full time grad student so I tend to make baby #1 priority, school work #2 and everything else comes after. My fiance hasn't complained about me doing next to nothing around the house. He knows I try when I have a spare five minutes (I'll fold some laundry or vacuum or start some laundry) but he also knows I'm still trying to figure it out. I know I can't let my mother do this to me but at the same time am I failing? my mom has also yelled at me for sleeping too much (I was taking two 2 hour naps a day, now I only take 1). I am the only one who gets up with baby right now since dad is working and I'm on maternity leave. am I being lazy or is this all normal? I feel like I'm making myself crazy. for reference I'm 25 and live on my own.