This is the most common phrase that you always hear but never fulfill in real life. According to my experience, studying harder and longer doesn’t always guarantee you to get A+ in all assignments and exams. Studying hard for long periods is very exhausting and 100% of the knowledge would not last forever in your brain. I used to fail many subjects back in high school but when I started to follow my intuition to study smarter, instead of harder, my entire life was changed dramatically.