One of the difficulties is, even when we remove those who caused the shame from our lives, the shame lives on. Even when we know others are responsible, the shame does not disappear. I think some of us seek a nurturing partner to be the parent that was not nurturing and that shamed us. When we dont get what we need or are further abused, we instinctively put it back on ourselves. I think the shame is deeply tied to negative self talk, such as not being worthy, lovable, etc. When we get these messages long enough from outsiders, we question, and then dont expect our basic needs to be met. May feel selfish for needing anything.
Little by little, we confront our positive attributes. For example, I have always been a very honest person. I dont feel that way about myself anymore because my ex hides money and will watch me do without necessities. So I have to be a bit dishonest just to get necessities-because he does not have any real idea of what food costs. Recently, we had a money discussion and he said that I use the money he gives me for other than what I am suppose to. I got my checkbook out and started listing the checks to the pharmacy, the vet, the doctors appointments, counseling, lightbulbs paper towels and toilet paper, etc. When I was done blasting him, I felt more honest. I asked him which items I should forego, medication, toilet paper, or dog food. It was clear that luxuries do not exist.
It just seems like a vicious cycle.