How much do you weigh cheesy? I'm be honest it really doesn't matter how much you weigh,well what i mean is sure if your naturally fat then weigh will matter. But if your physique doesn't show it then you shouldn't really worry much. Of course you should live in a healthy,exercise lifestyle. I sure am right now and what a difference it made to my health. Hit the cardio and weights when you hit 16 mate,do the squats,dead lifts and bench presses etc and you will see results for sure of your physique. When i was doing pure cardio and watching my diet i lost half a stone,i used to weigh 14 stone of fat but dropped the fat,now i weigh 13.8stone atm with muscle and loss fat too,i still look chubby no deny but i feel a lot better in terms of health and fitness. As for paintballing the only contact you have between others is your paintball gun.