Processing feelings

Hello. What are the steps to processing an emotion? I notice repetitive emotions that have been around since childhood, eg something bad will happen, im going to get in trouble. I grew up with a violent alcoholic father. Im working on new thoughts, but wonder about these oldies. Is it the neural pathways? Is there a part of me that stll believes it? Ive done so many models on these thoughts, and just wonder what keeps them alive. Im amazed at my growth since following Brooke’s work. Down 30 lbs, better, more loving marriage, so much calmer. Thank you.