Try some devices for repairing it. Watch yourself start to notice the problem by habit. Watch yourself start to apply your chosen solutions by habit. Then forget about the issue and move on to the next one. The cultivated awareness of choices is also the purpose of formal structures of grammar and rhetoric.
Formal structures are evil when they are imposed in a mechanical way from the outside.
But they are essential as aids to self-awareness. In the old days, students were advised to master the conservative forms first, and only then develop a personal voice. This idea is dangerous, however, because so many teachers abuse it. Instead, use the forms as tools for parsing your own writing and as a vocabulary for communicating with the people who read your drafts. Your toolkit for writing is probably much narrower than the repertoire of linguistic forms that you use when speaking.