Factual fear is based on things that are clearly dangerous, like venturing into a rough part of town alone after dark, like going swimming in a big storm, like driving a car you know is unsafe to drive; is the actual “fight or flight response”. This fear is a powerful mechanism that keeps us safe and out of danger.
Imaginary fear on the other hand, is, as the name clearly states: IMAGINED. There are no absolute facts in it, except the ones fabricated by the mind to justify the fear. Thoughts such as: “What if it does not work?”, “What if I cannot heal?”, “What if this gets worse”, “What if I will be disabled by this (whatever it may be: you low back, a hip degeneration, terrible migraines, pain)”?.
You do not know as a clear fact that you will not get better, that you will not heal.
Why don’t you say instead: “What is this works? What if I can get better? What if I just need to let go of fear and start stating the opposite? What if I can fully heal?”
From now on, choose to shift your mind from your imaginary fears. Be very diligent about it. In order to change a habit of thought you simply repeat the new thought pattern until IT becomes the new habit.