I was in a different situation. My friends all knew me by a nickname, and so I had joined in the nick name. I didn’t give my address because at the time I joined I was somewhat in transit.
I wound up being incredibly lucky.
I’ve read warnings about using your real name or email address. I’d used my nick name as ‘everyone’ knew me by tat name. I had a side email addreess I used just for Facebook, so never check it..
I guess, accidentally, I kept my Facebook life separate from my real life.
Further, I never post my business.
Politics, social issues, jokes, articles I wrote or enjoyed, I post. Not much else.
Although I’m not very computer saavy or was that aware of the dangers of Facebook, I was just lucky.