Man, it is sad to see people think this way, I mean I know it is not your fault. As an Indian, I know the mentality of most people here. But not everyone is like that.
Entrance exams aint worth it mate. I wasted 1 year doing that. If u have the intrest in studies go ahead.
Also dont eat street food everyday. Try mixing things up, like cook one day and go out sm other day.