Hi Vishwanath..
I can really understand how it feels when you prepare for exams and fail. however.. always remember that Failure is not in falling.. failure is when you fail to get up. Also think if you leave this there will be no Aim "Lakshya" in your life. If you are concerned about your career, you can pursue other Masters courses side by side.. but taking CA as your career objective. It will help you in the future as well. By the time you will complere CA you will have additional Masters degree.
I would like to share something here:
Once a guy asked Swami - Is there anything worst than losing a galfriend whom you love and care a lot?
Swami Replied: Yes, Loosing confidence of getting another one.
So it is not worst to fail in an exam but the worst thing is loosing confidence of clearing it.
So i would suggest you not to give up and take it as ur Aim of life. Study hard and and you will definitely succeed. Just have confidence in yourself.
Hardwork Conquers all