If you consider yourself 'born again,' did you have a sudden, miraculous change in your behaviour and personality etc?

[porridgeisbae]

For instance Revealing Truth on Youtube describes that he woke up and he could no longer get a swear word to come out of his mouth.

Did you suddenly and miraculously change?

Yep I mean I got into Protestantism, so I'm more looking at the usefulness of confession with a small 'c' I guess.

I never got to the end of a week without doing something which (I felt) meant I could not take Communion without going to Confession first.

Mainly swearing, detraction, bog standard sexual stuff.

It wasn't a sudden conversion, more a slow progression. It's definitely something I've had to consciously work at, rather than it just happening. The Freedom in Christ course helped. It also helped me realise that I was making progress. For example, when I first took the step to forgive, it was a definite "fake it till you make it" scenario: I know I have to forgive this person for what they did to me. It's really hard, but I'm going to make a conscious effort to forgive them. May God give me the grace to succeed". A few years later, when I was co-leading the course, I realised I had truly forgiven them - and others in the meantime.

Like @cheapskatemum it wasn't a sudden change but since renewing my faith I feel - and hope ! - that I have become a kinder person.
I try to always remember to think "What would Jesus do ? " before wading into a situation.