Is it possible to have all your Facebook posts blocked so that no one can see them but you?

Did I accidentally make all my fb posts private and invisible to my fb “friends”? If so how do I correct that?

Perhaps I pissed someone off and they took some sort of retaliatory action against me that blocked all my fb posts?

I’ve never posted foul words, pictures or video on fb.

I stopped posting political spin and propaganda stuff as my fb “friends” (and others) beat me up pretty good and intimidate me. So I just comment on other “friends” political spin and propaganda. Lately I’ve got into quite a few lengthy discussions/debates in which others (fb friends and some people that I don’t know) used foul words and called me bad names (a lot of bad names).