Why do I fail every subject every_single_seminar_ but I ace the exams?

I'm a pre-med student and all subjects are pre-med subjects (I'm actually the next year entry exam already). Every time I have a seminar I get 4 out of 100 (which is fail). However, when I review my notes and it's sembreak I can answer all 100 questions in the past exams. How can I improve my focus and memory retention? I'm already sleep-deprived, eating the same foods for breakfast. <br><br>Since I'm in pre-med, Seminar questions are easy. <br><br>P.S. I already have focus lessens, brain dumb exercises that can improve memory. Anything else I can do? <br><br><br>Mapapapako na ako sa seminar eh puro 4. I feel like I'm losing in pre-med admissions?