Too confident?

Ugh...what the hell......physics tomorrow......but no mood to study already.
Why no mood? Bcuz I felt too confident dy.
Don't ask me why I felt confident with physics cuz I don't know either.
Physics is not my strong subject.
All I can think of now is just listen to musics and play games.
Gah~~I'm getting bored of study dy!
Feeling sleepy now...