Is Study Hard?

Is study hard?Erm....sometimes I find it fun when I study but sometimes fustration will occur when I study!
I wonder whether is it I don't the right way to study then I just study blindly but why sometimes I find fun from it.
Studies sound a bit complicated for me. Stress is just there waiting when I study.

I'm tired and worn out!I really need a break but there is so much I need to do. How?

God I really need your grace, wisdom and anoiting from above.