You never needed to post every day. What works is to understand your audience, what excites them, what interests them. For the most part, you're either entertaining or educating. Sometimes both.
What do you do? I might be able to make some suggestions, if that helps. I do short form films for some businesses. Can't help you (unless you're in Boston) but might be able to make some suggestions you can implement yourself.
The thing I see most owners get wrong about social is they think about it like this machine that requires you to keep running so, if you slow down, you're somehow dying but it just isn't true.
Resonance > just constantly posting out of fear of dying.