Cambridge term can be very full and fast paced. This can be a positive thing; a certain amount of pressure can be motivating and bring out your best. At times, especially towards the end of term, it is common to feel tired and stressed, or overwhelmed by the amount of work and high standards expected of you. When tired, stressed or run down, it can be difficult to think clearly, prioritise tasks and to learn. If stress starts to impacts on your work and health adversely, do talk to someone about it.
You could talk to your Supervisor, Director of Studies or Tutor, or you might prefer to talk confidentially to your College Nurse or Chaplain, or someone in the Student Advice Service or Counselling Service. You could also talk to a fellow student, such as your JCR Welfare Officer or student mentor, if your College offers peer support.