A speaker or writer uses me to refer to himself or herself. Me is a first person singular pronoun. Me is used as the object of a verb or a preposition. 我 (第一人称单数宾格代词)
pronoun [人称代词]我(宾格)
I had to make important decisions that would affect me for the rest of my life. 我不得不做出一些会影响我后半生的重要决定。