If you’re worried about the data breach at Facebook you can at least check now if either your email address or telephone number were listed.
The NCSC has a good page for individuals on data breaches, what to expect, and what to do next.
Most important thing is to stay vigilant to scams and unusual email/calls/texts. These social engineers can be incredibly convincing.
Many such scams involve organisations like you bank or email provider or mobile provider or such.
If in doubt hang up or don’t respond. Reach out directly through normal channels instead.