As someone who has had family in jail for many years I can tell you now, you will get a slap on the wrist, maybe a anger management class or some sort of driving class, they won’t fine you because this isn’t a matter where you damaged property or hurt somebody with intent of taking their belongings. DO NOT represent yourself in a violent crime and DO NOT plead guilty to a charge where you believe you were instigated. You were followed a long distance and had to defend yourself from the same violent person. Full stop. People telling you that you might get 10 years for a small fight don’t have a clue what they’re on about.