Have you made progress on it? Fighting our own self-criticism can take a long time. You sound like you have increased your self-awareness on the subject. I have trouble letting people help me with things too. I do it for a different reason though, I have a strong fear of being let down by others and my step-father taught me form of indepedence that is just too extreme.
I have been reading a book on self-esteem. It points out that we are worthy because we are alive. I believe that we are created by God and are worthy souly for this reason. Do you beleive in a God or believe that human life is in someway sacred. If you do, you might could base your self-worth on the fact that you are a living miracle. I still can't get over how sophisticated our bodies and minds are. If not, I'm sure there are other ways to re-think a feeling of unworthiness. I hope you new T and you can start where you left off and continue to work on it. If you are like me and many other people, you have made progress on this (It just may not seem like it's not enough to count) and you have had successes in your life.
My affirmation that I made up is "Everyone has had successes and failures in their life. Therefore, I have had successes and failures in my life." After I thought of this, I started listing my successes. It was the first time that I ever felt like I'd ever had a success in my life. I shared it with T in my next session. Good luck and work hard!