my exam feeling

Today when in a-math period I then suddenly realise that how much I had forgotten about a-math. In the afternoon when starting of my a-math tuition I am struggling to keep up on what the teacher is talking. Also thinking that my n level is round the corner I am really started to scared now how? I could on blame on myself for having such a bad memory. Really sad to have such a brain. Furthermore my other subject just can’t seem to go inside my head, now I am really is very frighten.