writing assignment3

As long as people are in a couple of groups, people helps each other. At the same time, people can not be escaped from the guilty. I understand this idea in brain but I was annoyed by guilty until quite recently.
I am a member of acappella group which is singing a song without any instrument, thus we made a harmony and also the sounds of drams by the voice only. I am practicing two song recently and I could not sing the one of main part well the other day during practicing. I feel guilty because I said I want to sing that part and I did not know that how do my voice make loudly and feel better. I talked to my mom and I asked her to give me some advice because she was graduated from college of music and was major in the vocal music course. She told me some advice to do voice training (unfortunately the kind of voice production has a difference between the classics she learned and the pop music I am practicing) and also she give me a positive idea. What she said was "Don't think too much, you do not need to feel guilty so much, because having a responsibility and trusting each other is good thing for you. It means that without you, the other people can not make the harmony. Enjoy singing!!". I am always surprised and helped by her way of thinking everything positive. and also I have learned that if I feel guilty, I do not need to show my guilty and keep pulling a long face. I made a decision that If I feel guilty of missed something, I do not pull a long face and I will try to win the confidence from the next time.