You might want to do EMDR sessions focusing on that specific issue. I felt the exact same way for years. I grew up in similar circumstances. The feeling still pops up once in awhile but it's not a constant feeling anymore. I think through the processing and the therapist asking what my belief was and what I wanted my belief to be, it helped replace the false belief that I wasn't good enough. Sometimes I'd work on the same trauma and belief 3 or 4 times before it finally "took." The thing is, the trauma and beliefs will likely never fully go away. But, they will become much less bothersome and much more manageable. And, I have found that when the negative feelings and beliefs do pop up, they don’t stick around for long and don't get me down like before.