Clint and Pepper
That's because you're not sleeping. Make sure Tony is helping. I know he was probably raised by nannies or something and doesn't know what normal people do but I was always being deployed on Strike Team Delta and that's time you don't get back
And a little bit of worry about messing it up is normal. If that's all you can think about or it becomes overwhelming, go see your doctor right away about postpartum.