stressful month

this month it has been a very stressful month for me.preparing for exams is very difficult because you have to study for many subject and they all want a sixty percent i am worried i might fail advise me on how to deal wiyh this issues guys becauseI get tired easley and that is stresing me out I also loose concentration help me out guys.GOOD LUCK WITH THE REST OF THE EXAMS!!!!!