Mea Culpa

What're you saying? he said Im sorry, I committed a sin, I made a mistake. I asked you to forgive me... please forgive me. he said mea culpa, can you put it better?
;Im saying Im sorry, I made a mistake, I made... I committed a sin, I made a mistake. and Im never gonna do it again, I never did it before and Im never gonna do it again.