Copy Data from Multiple weekly Sheet to Monthly sheet and filter the data

Its not how I wanted. I am thinking of a sheet, with data from all the weekly sheets, so that I can have all the data on a single sheet. then we can create a monthly sheet from that. I have attached a workbook with the rough sheet and monthly sheet.
In the monthly sheet the rows should not duplicate. that is if the same user, with same project, has two rows with same phase, then the actual hours can be sum up to show in one row.

please find the attached and thanks for your help.