I feel an obligation to help special needs children. My interest in a becoming Special Education teacher has always been with me.
I think this is a bit long here; either one of the two will do.
because I feel an obligation to help
children with special needs.
OR
because my interest in a becoming Special Education teacher has always been with me.
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Maybe a little bit of a preference matter, I prefer "As a child" to "As a child growing up".
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However, after getting help from caring teachers I began to read.
"However" is probably a bit strange here, maybe:
Fortunately, I received help from caring teachers...
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Watching my brother struggle to learn how to read has made me want to help special needs kids with their educational goals.
Watching my brother's struggle has motivated me to help more children with special needs to pursue their education (why?)
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children can exceed no matter if they do or do not have a learning disability.
children can shine regardless of their learning abilities. (why?)
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I think you can trim of cut the last sentence to elaborate more on the contain. Personal preference though.
G L ~