I want to know why

0the first is my writing task, the second is revised edition by my teacher. she makes a few modifications. but I do not know why? 02br
02br
01b00Self-confidence02b02br
02br
01b02b02br
02br
00We find that we are always successful when in confidence. How dose the Self-confidence have this magical power? Maybe experts have a bunch of theories to explain it, but there is one thing, in my opinion, that makes self-confidence so important to success. That is self-confidence 00allows individuals to have positive yet realistic views of themselves and their situations. Psychologic experiments sugest that some babies having no physical deficiency can’t walk, because they have a problem to distinguish themselves from the environment. So they are not sure whether legs are theirs and even don’t try to use them purposefully. Once knowing the legs are parts of their bodies, they can quickly master the skills of walking. Like babies, we don’t know how to optimize our ability before realizing it in the front of unkown situations. Self-confidence gives a clear picture who we are and what kind of situations we are facing. So we can decide what we can do and can not do. Self-confidence makes strange situations 00 00become familiar to us. When we work in an familiar atmosphere, why not successes are easy to get ? 00 02br
02br
02br
02br
00red: delete blue :add 02br
02br
01b00Self-confidence02b02br
02br
01b02b02br
02br
00We find that we are always successful when in confidence. 01font00How dose the Self-confidence have this magical power?02font00 01font00Maybe02font00 experts 01font00may02font00 have a bunch of theories to explain01font00 01font00it02font00(this )02font00, but there is one thing, in my opinion, that makes self-confidence so important to success. That is self-confidence 00allows individuals to have positive yet realistic views of themselves and their situations. Psychologic experiments sugest that some babies 01font00having02font00 01font00(with )02font00no physical deficiency can’t walk, because they have 01font00a problem to distinguish02font00 01font00(a trouble distinguishing )02font00themselves from the environment. So they are not sure whether legs are theirs and 01font00even 02font01font00therefor02font00 don’t try to use them purposefully. Once knowing the legs are parts of their bodies, they can quickly master the skills of walking. Like babies, we 01font00don’t02font00 01font00do not02font00 know how to optimize our ability before realizing it in the front of unkown situations. Self-confidence gives a clear picture 01font00of02font00 who we are and what kind of situations we are facing. So we can decide what we can do and can not do. Self-confidence makes strange situations 00 00become familiar to us. 01font00When we work 02font01font00working 02font00in an familiar atmosphere, 01font00why not successes are easy to get ?02font00 00 01font00we may be easy to get success. 02font02br
02br
00 anybody can give the reasons? help me please,thank you in advance.0-