Order of Columns in Index

I have following query which has ON clause on different column, Where clause on column and Selection on different columns so my question is what should be Order of Columns in Index as according to my knowledge order of columns matters.

 SELECT     AA.[Column7],
            AA.[Column2],
            AA.[Column3],
            ISNULL(AA.[Column23], 0) AS [Column23],
            BB.[Column2] + '. ' + BB.[Column3] + ', ' + BB.[Column4] AS UserName,
            AA.[Column1],
            AA.[Column4],
            AA.[Column5],
            AA.[Column6],
            AA.[Column8],
            ISNULL(AA.[Column9], 0) [Column9],
            ISNULL(AA.[Column10], 0) [Column10],
            ISNULL(AA.[Column11], 0) [Column11],
            ISNULL(AA.[Column12], 0) [Column12],
            AA.[Column13],
            AA.[Column14],
            AA.[Column15],
            ISNULL(AA.[Column19], '') [Column19],
            CC.[Column1]
    FROM    Table1 AA
            INNER JOIN Table2 BB ON AA.[Column6] = BB.[Column1]
            LEFT JOIN Table3 CC ON AA.[Column22] = CC.[Column1]
    WHERE    AA.[Column5] = @Vailable1
    ORDER BY AA.[Column2] DESC,                
             AA.[Column1] DESC

So far I have tried below strategy but I am not sure whether it’s according to best practice or not.

CREATE NONCLUSTERED INDEX [IX_IndexName] ON [dbo].[Table1] 
(
    [Column5] ASC,
    [Column2] DESC,
    [Column1] DESC,
    [Column22] ASC
)
INCLUDE ( 
            [Column3],
            [Column4],
            [Column6],
            [Column7],
            [Column9],
            [Column10],
            [Column11],
            [Column12],
            [Column13],
            [Column14],
            [Column19],
            [Column23],
            [Column15],
            [Column8]
       )