Best way to concentrate on studies?

Sumit Deshmukh (Future Company Secretory)   (158 Points)

11 January 2014  

Hello Sir/Madam/Friends,

I am a Student of CS Executive Course preparing for Jun-14 Exam also with that I am doing a Job. So my question is.-

How I Concentrate on my studies after job when it feel me very lezzy and tired. I really want to study hard but not concentrating on that. 

Please suggest me some valuable suggestion and Tips for all of you.

Thank you.