Dreams about driving often reflect your sense of control in your life and the direction you are heading. In your dream, driving your girlfriend's car may symbolize the responsibility you feel in your relationship or your desire to please her. Making a left turn instead of a right could indicate a feeling of straying from the expected path or making a choice that goes against what you believe is right or what was planned.

The accident and the damage to the car could represent fears of disappointing someone important to you or concerns about making mistakes that could affect your relationship. Crying in the dream suggests a release of emotions related to guilt or anxiety about your actions and their consequences.

Overall, this dream may reflect your feelings of responsibility, fear of failure, and the weight of expectations in your relationship. It could be helpful to consider how you can communicate openly with your girlfriend about your feelings and any concerns you may have, ensuring that you both feel secure and understood in your relationship.