While no one can offer you guaranteed results, you can succeed with thorough preparation.
Proper dress shows respect for the court and presents a credible image.
Make an outline of the presentation you will make to the court and practice it in front of others. Keep emotions out of your presentation to the court. The judge is interested in the facts of your case and not the history of your relationship. Obtain documents for the facts you present. Documentation can strengthen the arguments you make to the court.