Hey Rahul,
I think you are so depressed and scared.
Just ignore everything and listen the voice of your heart, what you want to do? Now you are pursuing B.COM so i would suggest continuing with CA and to work like an
Just work work work and work, u will get which you deserves. Just work hard and enjoy the life never feel depressed in any condition some one is here to help you out.
Nobody can go back and start a new beginning, but anyone can start today and make a new ending.
Keep smiling :)