If I didn't tell you myself I can feel regret my actions forever. I would like to say that I'm sorry that you feel are not good for me. It will not happen anymore.
If I did not tell you my own I feel sorry for my actions forever. I want to say that I am sorry to make you feel bad for me. That will not happen anymore.
If I didn't tell you myself, I feel sorry for my actions, forever. I want to tell you I'm sorry for making you feel bad for me. That will never happen again.