being scared makes you freeze sort of and not counter attack aggressively which is what you should do instead of being beat up
Being scared triggers adrenaline.. This causes one of 2 things to happen...Fight or Flight, either way you get scared, very scared first. The pupils dilate, your heart rate increases, you neverous system goes into overdrive and you become very alert with all your senses, your body harnesses oxygen better and you will even tremble inside.. This is the mechanism where you either escape and get out of there (flight) or if you learn to harness it you will fight and you are at your most deadly when like this. This is when you tend to get tunnel vision and not really remember much of what happened afterwards as it seems like a brief second passed. Fear is your greatest weapon if you know how to harness it.
Aggression is part of the fight mechanism but sheer rage can be a major disadvantage in a fight as it causes you to loose your cool and wade in.. Rage at the right moment is the key to winning a fight but if you go nuts and burn out before the other guy or even dive straight in and get clocked unexpectadly then your going down.
Problem with roids is when you blow, you blow big and you do not come down quickly..this tends to lead you not knowing when to stop or the stop point being too late. Either way you get into a street fight and there is always atleast one looser.