Sounds pretty tough. I hope your 8mth old isn't mobile yet, that would make it harder.
Ask for help. Friends often don't know how or when to help, but will if given the chance. Say yes to help. Get a girl friend to come over and spend the day to help with the baby.
Slow cookers - love them - I still stuggle to get dinner on the table, 5pm is DS worst time of day, it's so much easier to put tea on in the morning.
Don't do anything round the house that doesn't HAVE to been done. Let stuff slide for a couple of weeks.
Good luck