Let's say he/she wants to get good grades because unconsciously he/she is afraid that otherwise a bad future awaits.
My question, is the act of studying more a defense mechanism? If it is, under which category we can classify it?
I thing closest is displacement, but as I understood if you are angry you redirect your anger with displacement. We can substitute other emotion for anger. If it is frustration, frustration needs to be redirected. But the person pushes herself more here so she is not redirecting her frustration(you can always clarify if I understood a concept wrong or send me a resource to clarify, I study by myself I just like learning).
Waiting for you answers! Thank you.