Preveiw of Seeing isn't Always Believing

Seeing is believe is my new story. Here is the summary:

Hey, my name is Josh, I can see stuff. Not ghosts like on TV. I can see stuff that....nobody knows. I see stuff before they happen. In my dreams, when i'm awake, every day of my life I always have visions. When I was a baby I had my first vision, I saw a vision of my mom on the road, in a car and she got hit by another one. My visions don't go step by step sometimes they jump from place to place. Well, right after my mom was in a car accident, I saw a hospital machine and it didn't show her heart beat rate, just the line which meant death. When I was a baby I didn't know what it meant, but when I turned five, I realized what they meant. Soon I had more and more visions, they turned really bad. I saw a lady get murdered and I saw the murderer as if I was looking through her eyes. I drew out the vision to keep as record or something to show to my dad. When I got to 10, I decided to show him, he thought I was crazy and sent me to a therapist. I told them I wasn't crazy, no one believed me. My dad left me because he thought he couldn't help me and I became a foster child. Now I live with a family of three kids and one mom.. They were friendly, they took much more care of me than my father ever did. Now today, I am 16. Today's news is all about murders that never lead to a suspect. The murders are hitting here now. My visions are getting worse. They involve my three friends and my girlfriend. They all end up dying. Should I trust these visions or stop the truth before it hits?