I'm a soft determinist (again, descriptive, not prescriptive). So my view of what constitutes free will is limited. And I believe that obtaining or discarding beliefs is not something that you can choose. They just happen.Are negating Free Will as a matter of choice.
I.e. You can have a powerful desire to believe something is true, you can pretend to believe, but if you don't believe it you will be unable to force yourself to.