Inspire others by how you drive.
Whenever you see that other drivers behave in a way that frustrates you, instead of behaving similarly as revenge, try to think if your behaviour on the road couldn’t be bothersome for others. Very often we judge others very quickly, but we don’t see that we make comparable mistakes. And people have the tendency to mirror behaviours of each other, so the best way to influence other drivers is to show them by example what to do.
Whenever you give way to someone else or make some other nice gesture, you make them feel how great it feels when people are nice to each other on the road and increases the chance that they will behave similarly in the future.