my life is a chaotic mess

My LO is 8 weeks and I'm a sahm. I feel as tho Iv gotten more and more tired and exhausted as each day goes ... the less I am able to go out (I want to, I'm not depressed) in just so exhausted, I don't have time to nake myself feel like myself and feel presentable, I barely have any energy to make food I just want to lie down when ever my baby doesn't need me. I was hoping by now we would of gotten onto some kind of routine but I can't stick to anything because I'm just exhausted .. she sleeps pretty well during the night but it's just not enough for me to feel rested, she's ebf and my husband works a 12 hour shift so I pretty much don't have any help. I constantly feel sorry and sticky and itchy even tho I try to shower daily. My apartment smells and feels dirty too. I don't know how to make it better. Right now although my baby is very content to be left alone on her crib watching her mobile I have to train her to use her neck muscles bettter as she is getting a flat spot and when she is napping I have to keep switching her head to the other side, makes it really hard to do anything ever! Any advice? I just want to feel like myself again and have some sort of a normal life other than wake up exhausted, feed, change diapers, pump!