Me at school:
Okay when I get home i'm going to study for this test and i'm going to be so prepared tomorrow it's going to be so great yes I am going to do this.
Me at home:
I mean I guess it won't hurt if I study tomorrow morning I mean I know about 3% of the material so I mean i'm good, that's a sufficient amount.
Me the next day:
WHAT THE HELL WAS I THINKING LAST NIGHT I HAVE NO IDEA WHAT 97% OF THIS SHIT MEANS OR SAYS FUCK UGH I AM NEVER DOING THIS AGAIN