The components of anxiety, stress, fear, and anger do not exist independently of you in the world. They simply do not exist in the physical world, even though we talk about them as if they do.
Things need not have happened to be true. Tales and dreams are the shadow-truths that will endure when mere facts are dust and ashes, and forgot.
It’s being here now that’s important. There’s no past and there’s no future. Time is a very misleading thing. All there is ever, is the now.