If I have a warrant out for my arrest, how will I be notified, or even know that I have a warrant?

I have been accused of various crimes from various people that I have not committed. I also have been assoiciated with a bad group of people recently. To my knowledge now, one of them is a murderer. I only learned that recently once I stopped hanging out with them. I am afraid that I might be falsely accused for something that they are associated with or maybe false accusations from someone that is either out to get me or doesn’t even know me. I live in Greensboro and I am 17, the people around here are brutal and a lot of people hate me. All the hate is because of boys which I think is so dumb.