Study smart or hard?

Well, second test is over. I failed to keep my promises to myself. I think I probably fail again in every subject except for MUET only. This time, the questions are set easy, but I still can't answer. Why? Because I don't well-prepared. No one to blame but myself. It is my character to be a joker and looked down by others. The negative thinking cells filled up my body from time to time. It's not about pressure nor time, it's about attitude problem right now. I told myself: You are not allow to hang out after August, except for some expected functions (prom night, friends' birthday). I believed, a person who really study hard still couldn't get good results, means that they study without understanding. I believed, a person who study smart can get good results even thou they do not study pretty hard. So, I believed I'm a smart person. Not to be sarcastic but I think I'm that kind of person. I don't like being over estimated or under estimated. I've been over and under estimated by others. But now seems like everyone looked down on me, even myself. I just can't get off this feeling. I'm not that kind of person who can sit still and study for a day. Anyway just have to show what I got and don't ever looked down and under estimated by others. I believe I'm smart and I can make it till the end.
Time will show what I've got. Hard work is only another short cut way to help you achieve your goals, study smart is the main one, to achieve what you want.

Studying is a trend to make up human minds