[Question] how to truly feel my beliefs?

I have some beliefs that I believe, but I don’t feel them. Like, I consciously believe them, but subconsciously I don’t. Consciously, I am fully aware that we could all go extinct by the hand of one of the many existential risks we are currently facing as a species. But I don’t feel it, deep inside of me. Just like I know that all people are equal regardless of race or gender, but implicit biases still remain. It seems consciously forming and submitting a thought is not enough to cement it deep into me such that the false previous thought it replaces no longer affects my decision-making process. How can I rectify this?