I am assuming you are under the care of a good psychiatrist. Having bod and taking medications as prescribed by the doctor should be able to allow you to lead a normal life it's just that ur conscious of ur disorder or others around you are making you conscious and you feel you aren't able to concentrate. I am not saying you will top ur class but you can perform averagely well with medication and family support. Also indulge in your hobbies try deep breathing exercises too from time to time to calm down your anxiety. Get plenty of rest and eat lots of fruits and vegetables. Stop worrying and just relax you will be able to do just fine we are all confident of the same. All the best.