NOPE, please don't do that. It's time to call CIC and ask about the application status. Tell them that you have sent your application via xyz post/courier. Don't get surprised if they say that your application is not traceable. Ask them if "they (CIC) want me to re-send the application!!"
On the other hand, have patience. You waited patiently for last so many years. Many of us have not received AOR, IP status, Exam dates, Interview, Oath ....blah blah blah ..... The problem is, there is no definite path that CIC is following ....Everything is based on our guesses and predictions. We have to 'just' wait and update the tracker as & when it happens!!
Cheers, Anil