Fear Of All the Things. Me out of this?

I was fearless before.The time i stepped in high school. Im having fears of all sort of thing mostly because of the things i had seen on the tv.Those things im applying to the real life.Im scared of football hitting my face same with cricket.Im scared of driving my scooter.When ever my parents leave home on bike,im scared that they will get into an accident.Im scared of loosing people in my life .Im 18 yrs now i dont want my rest of the life to be like a coward i want to overcome these fears.And one more thing is that on tv i used to see CID a lot and those shows which showcased muder mysteries and whenever i get angry i tell that i will kill that person like that..Its just for some time .And i get angry very quickly only in front of my family.For the rest of the world im very calm.Please help me out of this ?