Help!- sorry long post

Kelly
Me and my husband are struggling. He gets up at 5am to work and while i rarely wake him to take the baby, unless he is super unsettled, he has been in charge of putting the other 2 to bed (5 and almost 2) by himself and they are running rings around him and the 5yr old is staying up for hours and as he has school is now a tired grumpy monster every arvo and we just end up fighting. My daughter who is nearly 2 has now clung to hubby at night and when he leaves her bed she always wakes up and then comes to our bed aswell. I am too exhausted myself at night that i often hear the kids running and just leave them. The new baby is also very clingy during the day and if he isnt in a carrier hes crying and my daughter is very jealous. I try to give her time when i can but those small windows of peace im having to chose between her and the house that looks like a bomb hit it. I also know i need some time for me in there somewhere but feel too guilty taking it. Me and hubbys relationship is also terrible as by the time he comes home we eat and start bedtimes.. Sorry this is really long i just feel like i need to reset our lives and im not sure how to start. Any ideas are appreciated.