Since you have very likely been distanced from a true connection with your feelings since childhood, you may feel some resistance to connecting with them again. You may begin to fear that there will be a considerable backlog of feelings which will sweep in and overpower you if you were to open the door. This is just your Drill Sgt. trying to maintain the status quo because his task is to keep you safe, and this is new and different and therefore, by his standards, unsafe.
As you begin to connect with your authentic feelings in the moment and learn how to effectively release them, you are going to become more powerful and competent at taking care of yourself than the Drill Sgt. has ever been. And the ways that your Nurturing Parent will learn to take care of you will lead to greater self-esteem and peace.