I’ll do it for more then 5points though
It means true friends are hard to find but when you do find them hold them close because they're worth so much. Fake friends are literally everywhere around you and mean nothing/worth nothing.
The sentence provided is a run on sentence.
The sentence speaks of two different topics in one sentence, this should be two separate sentences.
1. The fact of being who or what a person or thing is.
or
2. a close similarity or affinity.
hope this helps plz follow me ❤
