If you want to be mentally strong, replacing the unhealthy belief with healthy belief.
What are my unhealthy beliefs?
I believe that I can not get a job in Finland
I believe that I am not capable of performing well in the company
I believe that my english skills are not good
I believe that I can not be a manager
I believe that I can not be a specialist
I believe that I would not be 48kg
I believe that I am slow
I believe that I am a bad student
I believe that I am worse than others