The number one fighting style is (to) not give a fuck about repercussions and (to) know how to throw punch (a decent two-or-three combo is better) … and hit first.
Precisely this.
BJJ, while very cool, and impressive, isn’t a favourable approach to take in a real-life altercation.
Be fit, strong, physically built, aggressive, measured, and confident in your ability to launch some strikes, and receive some shots, relatively unaffected, and be 100 percent goal-oriented.