Are you doing it because you're well into the subject you're studying so find it interesting and you're motivated to find out more about it, want to get involved in projects around it etc. ?
Or is it about being a special me me because of scores, grades, titles against your name etc. ?
If it's the former then do more and more and eventually you'll add value to the world. You'll have meaning and purpose in life from it.
If it's the latter then the reward will be short lived and a time will come where it won't do it for you anymore.