Oh no, I forgot since I was studying late at night
Where did you go to study?
I was studying at my house all night
Education is important and it is good that you spend time studying. It could help you get good grades and later on a good career.
What's the point of getting good grades if i can't use it in my future?
Learning subjects makes you a well rounded person. You'll be surprised at how much you can use in the future.