Bahot pareshan hogaya hu zindagi se
Dear student,
You have not mentioned the reason of your disappointment in the question. If you please mention it in the question, then we will tell you the best way to overcame it. So, please post a new question with the real reason. Only then we can help you. Everyone gets disappointments in life , but the best way to live life is that, tackle all the difficulties and move ahead with full confidence.
Hope this helps.