im 16 and attending high school. in this particualr region theres alot of street fights and toughies and people like that so fighting is almost inevitable.

Im roughly 6'2 250 lbs and quite strong. i have some karate experience and kickboxing.
im not very fast and dont have intense balance. so what i wanna know is what a guy with my pyshical attributes shud focus mostly on in a street fight. shud i attempt to mount them ( them being normal, prolly untrained street kids) shud i try and throw them around. even tho i know u shud act on instinct and do whatever comes to ur head, but what shud i try to do with my size, how can i use it effectively?