An "assumptions" is a memetic construct that is not required to be connected to reality.
Your Being can assume anything about anything.
It takes self observation and introspection to discern whether what you are using to think with (your thoughtware) is an Assumption or not.
Ignoring this distinction is like not checking to see if the book you are reading is fiction or nonfiction.
An Assumptions does not require you to look around inside of yourself at your internal reality
(for example, at your level of unconscious fear that is being covered up by the Assumption),
or to look around outside of yourself at external reality
(for example, at how the current level of methane in the atmosphere (1888 ppb in June 2020) equates to a global temperature of +12 degrees Centigrade higher than what has been average over the past 800,000 years).
In what circumstances did you make your Assumption?
Why do you keep yourself restrained by this Assumption?
What if you are finished with your Assumptions in the same way that a butterfly is finished with its cocoon as it flies into the world as an adult?
How can you do that?