Yes, you work. But if the barn floor is dirt...and after 21 days of brutal cold where animals can’t be turned out for extended periods of time...that dirt floor is going to be an unavoidable mud pit. All the cleaning and straw bedding isn’t going to change it.
And yes, I know very well how it is to work hard enough to lose 15lbs. in 2 weeks.
And again, if that's too much to do, then hire someone or get out of the business.