Going Back and Forth Between the Two Worlds, I'm Going Back to Death to Kill Through the Weird

Others risk their lives once they travel through time. I'm different, I wear it every day. One day the world is peaceful, the other day strange things are rampant, seamless rotation, no choice. The brother who was hooking up with you one day, opens his eyes the next day, and becomes a monster who wants to eat you alive. No one can help me but myself