As of now, I don't have any idea on how the promotion system works.
You need a good profile, be professional, create opportunities, improve your skills and be a leader
From what I can see, my co-workers were being promoted after 2 to 3 years of working. So maybe as long as we are doing our job and they see that we are potential employees, they are going to give us career progression.
I think it is base on your performance as a therapist on how you handle the clients not on how long you are working.