I have similar feelings at times...right now I am working on identifying cognitive distortions that cause me to need approval and always doubt myself, and insecurities/decision making. I am also working on where my firmly held belief system/self-opinion are rooted to identify the source. Hope this helps....after years and years of therapy...some of this stuff is finally making sense to me and starting to click, but I still resort to the negative thinking regularly. My T said that once I recognized it cognitively, there would still be more work to do. So technically, I guess I am finally at the first step.