I've done things in my distant past that could have been interpreted as not good. I know the difference now and choose not to do those things. I learned, but I pay every day in guilt and get reminded regularly about what I did. Thinking about those times, seven+ years ago, makes me ill, physically and emotionally. I've apologized, I've changed. I'll never go back to that state. I did the best I could in those situations, but it wasn't the right choices. I know my evils and have not gone back to them in seven years. Certainly this is a move forward for me?
I've also been, and was then as well, a victim of abuse and neglect. I was doing what I was told to do, because I had been convinced it was the right thing to do at the time. I know the difference now. That doesn't remove guilt or my feelings of guilt, and I'll live with those my remaining days.
I know that is a completely different person than the one writing this. I cannot forgive myself some of these things but know I need to in order to grow.
If admitting these things from my past is reason for my dismissal, then do it. You have your rules. I won't look for support elsewhere. I'll go without because I can't start over. I don't have it in me.