Where is happiness?
I can use what I have learned. I use it from time to time, so happy.
Learn a boxing technique, ha, and beat up my classmate who bullied me. Have fun.
Learned to make money, really earned it, happy.
It is really fun to study and practice.
The word "learning" has always meant practice. It's just that our education is stupid enough to think that learning is learning.
Confucius is great.
Unfortunately, this explanation can't give you a composition. But I hope you will not be misled by teachers or education. If you are unhappy in your study, you will be unhappy. Only when you learn what you can use and keep using it will you be happy.
Everyone is willing to learn what they can use.