20
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JavaScript, score 16, 179 bytes
They said it couldn't be done, so I did it :D (thanks to a lot of help from @FullDecent)
!!/!//!!/!/
C=CSS==CSS;C<<C
3
`${-``}xf`-`${-``}xb`
5
6
7
8
9
++[[]][+[]]+[+[]]
11
4444444444444444444%44
222>>2>>2
'.length.length'.length
0XF
~isNaN()*~isNaN()*~isNaN()*~is...