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To learn punctuation and capitalization, get your hands on a style guide appropriate for your language (or region or company). I have the Chicago Manual of Style and the AP Manual. Also, read a lot...
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#3: Attribution notice added
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#2: Initial revision
To learn punctuation and capitalization, get your hands on a style guide appropriate for your language (or region or company). I have the Chicago Manual of Style and the AP Manual. Also, read a lot. Works published by reputable publishers will (usually) be proofread closely and reflect the punctuation and capitalization standards of their language. Don't worry about repetition. Repetition is not a sin. Just write your piece then read it aloud. Listen to where the repetitive bits sound weird and fix those. Good luck.