If you are renting club rules apply. If you are part of a group, group rules apply. But overriding all of this is that if you feel out of currency, have a check ride. Don't ever fly solo or, worse, carry passengers if you don't feel fully on top of your flying.
Carrying passengers - I know you need to have done 3 T/Os / Landings but within how many days to be allowed to carry passengers?
Within 90 days - see LASORS