Add rows based on break dates with VBA

Question

I have a database that shows exposure indicators at a monthly rate with dates that showcase break dates for each client individually. For formatting reasons, I've been asked to show the break dates by adding rows with the same client info but having the exposure indicators in annual order (one row with the exposure from 2020, other for 2021 and so on) while conserving the columns for the months (like a staircase for each client).

My first attempt was to add a VBA function that copies the entire row when the count was higher than 12(dont mind the spanish plz):

Sub RepetirFilas()

Dim i As Long
Dim UltFila As Long
i = 50002

ActiveCell.SpecialCells(xlLastCell).Select
UltFila = ActiveCell.Row

Do
    If Cells(i, 44) > 12 Then
        Rows(i).Select
        Selection.Copy
        Selection.Insert Shift:=xlDown
        
        UltFila = UltFila + 1
        i = i + 1
    End If
    i = i + 1

Loop While i <= UltFila

End Sub

But this method paste the entire row and creates double data which clutters the analysis, so from there i'm basically stuck since my ability to code on VBA is limited.