How to process Multiple Queue Items

Thank you very much for your quick response. I really appreciate your help.

As per your logic, The loop won’t go to “Process” State.
Let me provide more details about my request.

I have 4 Queues. I need to process one by one Queue Data ( Read the Queue Data and post them in the Web Application). One the Queue data is completed, Send the confirmation Mail. Move to the next Queue Data