Automatically Check For Last Date And Insert Row Below Last Date

I have a sheet(Sample.xlsx) in which weekly data is collected and this is done by using the VBA code(Present in Copy 1 and Copy 2 button in Master US.xlsm) written by me. But in my code, it inserts a new after asking two parameters, i.e. line range(i.e. row no for eg A64) and date. I want it to automatically search row containing last date and inserts row below it and this needs to be implemented in "Insert Automatically" and "Insert Date" button using VBA code in Master US.xlsm sheet.I dont have problem with second paramenter.

Logic i want to use :

Itergation of whole page
{
If (col A<>Date)&& col A=Average(i.e. contains average word)
then
inserts row above that row

And then ask for date to enter using date variable.

then inserts row above that row containing last week data in col A.
}

"Insert Automatically" in Master US.xlsm sheet is the button which takes system date and implements the above logic.
"Insert Date" in Master US.xlsm sheet is the button which ask for only date and implements the above logic.

Sheets attached.
Master US.xlsm
Sample.xlsx