I don’t think it’s a good idea to publicize one’s (own) wrongdoings. It’s a bit of chilul HaShem to do so.
If you did something dumb (and lets face it we all have) and then learned from it sharing that can give others hope! I mean if I know that someone else had (for example) way too much debt but managed to cut up his credit cards and live for many years without debt, then that can give me hope that I can get out of debt too.
(Actually I cut up my credit card ages ago)