Why I'm always feeling like this?

No matter what I do or what I go, I always feel in fear, dealing with this as well as anxiety every single time even if nothing dangerous happens in my surroundings. Its always related to the news, to the delicate situations around the world, the feeling of a looming disaster that will just finish with everything we know, idk if I'm just overreacting or not, but I always fear that something terrible is about to happen even if there's no real danger around me. I haven't tried therapy, my parents aren't nearby and I just have my younger brother for support, I refuse to do something that will only hurt my family just because I'm someone who cannot control his own feelings. I just want to live in sweet ignorance and focused on my own happiness and my family, without the need of feeling that I'm gonna die cuz of a disaster or whatever, I just don't want to end it like this, I'm tired of this feeling.