You have an acute insomnia
most with the added burden of the anxious associated with it that is aggravating the problem. Acute insomnia usually has a underlying psychological basis and usually an acute stress
is involved in its causation. The management would be finding the underlying cause, good sleep hygiene
, relaxation exercises, avoiding caffeinated drinks after evening, not worrying about not being able to sleep instead engage yourself in some activity that should not be mentally stimulating e.g reading a religious text or your course book. And going to bed only when you are really sleepy. This should help you. If you are still not able to recover please do get yourself referred to a sleep physician.