Need help

Requirement

-- Add the parameters for the stored procedure here

--@endofquarter user will select from slicer date picker
    @endofquarter datetime

   --@yearstart will get from @endofquarter
    declare @yearstart datetime
    SET        @yearstart = DATEADD(yy, DATEDIFF(yy, 0, @endofquarter), 0)    

-- This SQL query i need to implememt in power bi 

    Select    SUM(CASE    
            WHEN full_date >= @yearstart THEN total_paid
            ELSE 0
            END) as YTD_Paid
    from    fact.fact_table
    where    Full_Date>=@endofquarter

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I tried the below DAX query in Power Bi, but it did not work. Please assist me.

Ytd_PD =
Var endofquarter=MAX('Date'[Date]) //created date table for the date picker (@endofquarter)
var  yearstart= DATE(YEAR(Max('Date'[Date])),1,1)
//Var SumofTd_Pd=SUM(fact_table[total_paid])
Var Result=
            CALCULATE(SUM(fact_table[total_paid]),
            FILTER( facttable,
            IF(
               MAX(fact_table[Full_date])>=yearstart,fact_table[total_paid],0
                ) &&
                fact_table[Full_date] <=endofquarter   
            )
            

Return Result