Hello, I understand your feeling and also your condition. No need to worry about this I know it bothers you. But it is easy to say than to practice it. It is more important to a student to keep things in mind. And to remember them is a task no matter what. If you're fogetting things then you need to have some more practice and revision. Take your time to get it all and revise every thing so that you can give your best shot. Thank you