Which do you revise for coherence in autobiography?

I'm not sure what you mean by what would you revise for coherence in autobiography. The only things I can think of are:

• make sure to use correct pronoun, first-person "I"
• make sure to use correct verb tense. Typically, autobiography is written in past tense, unless the writing includes current material at which point the verb tense is present tense.
• make sure to use active sentences rather than passive