You are in the state where it really depens how much you know about your syllabus and have you attended you lectures and with how mich of concentration and just be relaxed. 11ths not to be considered anywhere.
Case 1-
If you have attended your lectures and studied a little bit before like an hour a day, then you will be able to recall and yo yourself will figureout the way to study
Case 2-
Now its the time for real learning (ratta in hindi).
Step 1: Get some books that provide you with question and answers
Step 2: Find all the previous year question papera of your exam