Most people who start a fight blow their load in the first 30 seconds.
Joe Rogan explains the simple defense. Keep your hands up, stay moving, and let them swing. Someone who just wants to hit you has no real gas tank. They tire fast. Once the wild punches slow down you are no longer dealing with a charged-up attacker. You are dealing with someone who is already spent.
Patience turns their aggression into their weakness. The ones who never trained reveal it the moment the adrenaline runs out.