No. Not willfully doing that sin again shows that we've repented of it.
We can show that we're sorry for our sins without making a spectacle of it by doing works, but by living righteously.
It's a lot harder to do that then spend a few minutes after confession saying your Hail Mary's, Our Fathers' and Rosary, if we've been that bad.
The problem with confession is that there's no motivation to not sin again. All you have to do is go next Saturday, confess and get your new set of penance to do and voila' you're done.
you mean that if you do something wrong and do not truly feel sorry for it and do something to SHOW to God that you are truly sorry, you think it’s ok?
you seriously have not attended confession if you don’t know that that it is a strong a motivation to NOT sin again — Go and sin no more.