I'm in Grade Nine.How can I go back to Grade Eight immediately?

Don't be so nervous.It is useless and unrealistic for you to go back to Grade Eight.I'm sure you know this clearly.As you are getting older year by year,you must take on relevant duties and obligations.It is the normal for anyone to feel tired upon the tremendous pressure from teachers,school,family and the society.Anyway,you should try to cheer up,learan to relax,be confident with yourself.I'm sure you will be successful in the Junior Exam through your efforts.Good Luck!