I'm going to turn on my high beams and then tailgate the car in front of me.
That seems like an odd thing to do. Why would you want to turn on your high beams with someone in front of you?
I'm going to do whatever I want, man!
You should behave in a more considerate way towards people while driving. Driving with your high beams on could cause a dangerous situation plus make others angry at you.
I'm going to show these shithead drivers who's boss.
I'm not sure why you feel the need to show other drivers that you're the boss by annoying them with your headlights. I think you should be more considerate of others when driving, because what you're planning to do is rude and dangerous.