Thoughts before Action

You have mentioned that you can’t “action” your way into a new way of being. So what do you do if you have been thinking the new thought, doing models on thinking, and believing and my action has not changed? Making yourself do something that brings up anxiety and fear I know is good. But what if you still just haven’t changed so taking the action is not natural and just reinforces the old thoughts of fear and anxiety? Do you still take action or keep doing thought work?