I remember myself having to deal with getting a cut off GPA one semester and read my eyes out.The strategies that include staying up late,taking extra classes and other things so I don't fall short.
It is actually difficult to concentrate when you are under so much pressure so I did all I could and then came the exams,I did all I could and still fell short.Moral of this is to never out yourself under pressure.
Anyway,I hired a professional hacker who then helped me change the grades so I'm good lol but let's not miss the point here.
Study at your own convenience