Can I be myself again? (A psychological question too)?

For those who have read my previous 2 questions , you would be more aware of my problem.Wearing a mask character made me lose my own personality (as I think).Pretending to be someone else for the comfortability of others have destroyed myself,what I was.Now I am filled with a horrible emotionlessness state.My high passions are gone, my thirst to study is also gone.Can I ever regain what I was , can I ever get that fiery spirit of passion and desires of my education and job.I want them as at present my mind is very blank.I have no desire to improve in anything.My academic brilliance is falling.I studied very well in previous , lowerclasses.But when the need for study is at the highest point in my academic life(Next Year Board Exam) I am not feeling any urge to study.I am a mere teenager with the whole of future infront of me.I know perfectly well that if I don't put on my best efforts in my education my previously cherished dreams , hopes all will be no more.But still even being aware of these facts I don't feel a thing.I have at least 10 years of education waiting infront of me.I don't know if I am feeling like this from this early age,what would my attitude be at the most hard work demanding(academicaly) times of my life.I am about to face my ClassX board exam around this time next year.If I am not preparing I will lose,by cheating not only myself but also my loving parents wh have set the expectations high in me.If I do so,then I don't see any point in living anymore.I just want my previous self back again.I want my passion or the ardent desire to concentrate on my goal.I had dreamt a lot about my brilliant perfomance in the coming class and in the XII too.But at present ,do you think I can make it?Now only I realise that having no stress and tension can ruin a man's life.I just want my spirit of passion back.Once my friend told me not to have much expectations.So I stopped expecting and you know without hoping or expecting,a man can never do his best.This too happened to meI know it is a lot boring to read till this end and I am sorry about it.But please help me as this is a most disturbing time for me.I would be very grateful if you tell me some effective study tips too.