In your case, the memory problems are probably due to having too much "on your plate," as they say. Too many projects, too much stress and not enough sleep will do it to you. Are you done with final exams? Take a few days to do nothing but sleep, watch junky T.V. and eat ice cream. Don't get out of your pajamas. You'll be surprised at how much good that does you. I'll say a prayer for you.
Good advice. Insufficient sleep is often a big culprit, along with stress.
Sleep is opportunity for the brain heal and self-repair. In my work with the mentally ill, we teach recovered patients to look for the warning signs that they might be having a relapse, and one of the first common warning signs is decreased sleep.
The other thing that worked for me was remembering the living and the dead in my prayers. I keep a diptych with the first names of the living who have asked me to pray for them on one side and the names of the departed on the other, and each evening, I commemorate each person in my prayers. Since I started doing this, I noticed a very sharp increase in my memory and ability to recall stuff. It seems, like everything else, we need to exercise our memory.
Another way of exercising the brain is mindfulness and being present in the moment. Whenever you wash the dishes, wash the dishes; that is to say, focus all your attention to what you are doing. This helps stop the endless chatter and self-talk that goes on in our heads which is a passion we all have to struggle with. Learning to "filter out the noise" and being mindful in the moment helps eliminate the unnecessary things which preoccupy our minds like tenants who pay no rent.