Firstly , I would like to say if you are in 11 or 12 class these are the golden period of life of students .If you demotivate then always keep one thing in mind "Bana lo ya bigar lo". Agar tumhe kabhi bhi Lage ki I am wasting my time then plz think that Abhi aaram to phir kabhi aaram nahi milega .Only these two years can make you someone that everybody recognised not only with your name but added your profession before it. Like o IITian gyanshree or anything else.At last main thori hindi main likhte hoon ki WAKE UP WITH DETERMINATION AND SLEEP WITH SATISFACTION