Your dreams are made up by your mind, either things you’re worried/excited about or seemingly unrelated..try to figure out if they do have meaning. Are you taking drugs (legal/prescribed or recreational)? That can have a huge effect. There’s a painkiller that is very commonly prescribed that gives me night terrors, far, far worse than nightmares.
But then there are dreams that are warnings, or premonitions. Pay close attention and try to record your dreams to look for a pattern. But I’d stay awake or try to record recurring dreams. I have several recurring dreams that I’ve had since I was a kid, and they weren’t about anything real (that I’m aware of), but I get a bit freaked out because I remember having the same dream many times, long ago.