Mercury really is particularly small and faint in the sky; particularly as it never appears in a dark sky.  Try to spot Mercury in these pictures.

22-May-2020 at 21:30h: Venus and Mercury just above roof.

22-May-2020 at 21:30h: Venus with Mercury below, West Cliff.

22-May-2020 at 21:30h: Venus with Mercury to the left.

22-May-2020 at 21:30h: Venus and Mercury.