28 days Postpartum and im so tired everyday!! Why!?

I’m still tired up till now. I delivered on 17 Sep 2023 and I’m still tired even when bb is in infant care and I slept the entire morning from 8am up till 6pm AND IM STILL TIRED….. Btw, I’m the main caregiver to bb and on rare occasions hubs help with one feed. I can’t imagine if I’m back to work early Jan 2023. And so I decided to hire helper which will arrive to me by mid Dec 2023.