Tweaking Financial Calendar

Good morning All, 

Our company has change financial calendar. This means that January is starting since 5th of January (calendar week 02) and month closed is in 30th of January (calendar week 05). My calendar looks like below: 

Could do you help me to tweak range 28/12/2025 - 03/01/2026 as week 53 in 2025 ? Rest of previous dates are correct. 

COQ Calendar = 
var _date = date(2018,1,7)
var _st = _date +-1*if(WEEKDAY(_date)<7,WEEKDAY(_date),WEEKDAY(_date)-7)
var _cal = CALENDAR(Date(2018,1,7), TODAY()+3)
return ADDCOLUMNS( _cal
,"Year No" , QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,364)+1
,"Day Of Year" , Mod( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,364)+1
,"Day Of Week" , Mod( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7)+1
,"Qtr" , Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,91),4) +1
,"Week of Month" , var _1 = mod(Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7),52),13) 
        var _2  = if(_1=12, 5, mod(_1,4) +1) 
           return _2
,"Month no" , var _1 = mod(Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7),52),13) 
        var _2  = if(_1=12, 3, QUOTIENT( _1,4) +1) 
           return Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,91),4)*3 +  _2
,"Month no P" , var _1 = mod(Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7),52),13) 
        var _2  = if(_1=12, 3, QUOTIENT( _1,4) +1) 
           return 
           IF(Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,91),4)*3 +  _2 < 10,
                "P0"& Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,91),4)*3 +  _2,
                "P"& Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,91),4)*3 +  _2)
,"Week" , Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7),52)+1
,"Week WK" , IF(Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7),52)+1<10,
                "WK0"& Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7),52)+1,
                "WK"& Mod(QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,7),52)+1)
,"Year" , var yearfull = QUOTIENT( DATEDIFF(Minx(_cal, [Date]), [Date], day) ,364)+1
        RETURN
            SWITCH(TRUE(),
            yearfull = 1, 2018,
            yearfull = 2, 2019,
            yearfull = 3, 2020,
            yearfull = 4, 2021,
            yearfull = 5, 2022,
            yearfull = 6, 2023,
            yearfull = 7, 2024,
            yearfull = 8, 2025,
            yearfull = 9, 2026,
            yearfull = 10, 2027,
            yearfull = 11, 2028,
            yearfull = 12, 2029
            )
)