I had the same issue with insecurities for a short while. My sponsor told me that even though I'd gone through the motions of "Humbly asking my Higher Power to remove my shortcomings" I hadn't trusted Him with them, so I kept taking them back. Wasn't until I became willing to let them go totally that they mostly disappeared. Seems strange to say that I wanted to hang on to them, but considering I'd had those insecurities and shortcomings all my life, they were part of me.
Let them go.