Beliefs are constructs, and so two things can happen.
They can fail you. When you least expect it, when you start thinking at beliefs as reality, when you put a lot of pressure on them, the world will shift and they might not be relevant anymore.
They can change. It takes probably more time than you’d like, a lot of learning, some pain, and yet there is no reason why your beliefs should be the same for all your lifetime. When was the last time you thought Santa would deliver gifts on Christmas Eve?
As this happens, you can either cling to your failing and changing beliefs pretending they are fact (they are not), or you can challenge yourself over and over again to find uncomfortable situations, meet that person you’d never want to meet, learn something out of your field, invite somebody you don’t know very well over for dinner. Make it so this choice is deliberate.