Christ, with my first, no, I had the same kinds of problems - that baby would only sleep on me, I was exhausted because he was having trouble figuring out feeding, and I'd had an EMCS so was in pain, oh, and my legs swelled up from the epidural.
I think I only managed to shower once every 3 or so days, I have no idea about tooth brushing, it was all a fog, frankly, sleep was more important to me, and the only way DS would spend any time away from me when awake was in the bath with DP - which meant I was reduced to a flannel at the sink anyway. I remember puting DS1 in the bouncer, diving under the shower while he screamed his little head off, and having the quickest wash possible for about the first 3 months.
Second baby, was night and day - he was a chilled little thing, who'd take cuddles from anyone, and was happy eating, sleeping, and watching the world go by.
I think it all depends on your luck with the baby, and you're judging her because you just haven't had that experience.