Remote work with an infant

I have a 4-month-old baby and I go back to work (remotely) in a week. I have no idea how I’m going to get anything done. I’m looking for other people’s experiences working from home with an infant.

I can barely get everything done now — cooking, cleaning, doing physical therapy with my baby (she has a flat spot we are trying to fix), doing my pelvic floor physical therapy, making sure the dog gets walked and goes to the bathroom (this is more difficult than it might seem, as we have no yard and are on the second floor), going to the gym, breastfeeding, planning meals and going grocery shopping, etc. I truly don’t know how I’m going to fit 8 hours of work into my day.

Now, she is exclusively breast fed, but when she starts solids in a couple months, that will add more complexity and time to my day (making the food, supervising her while she eats, then cleaning up the mess).

I have a pretty easy going boss and very flexible schedule, but I do have meetings daily as well.

My husband works full time in an office. He helps a lot when he is home, but he is not home during the day.

I have heard that people successfully work from home with a baby, but do you also have time to make home cooked meals and go to the gym and such?

EDIT: we don’t have any family nearby, they all live 1,500 miles away.