If you were thinking about your past sins and saying 'wasn't that all great, I feel like I wanna do it all over again' Now THAT would be wrong.
I can't see what you did as being sinful, although it's not necessarily very helpful.
St Paul at one stage calls himself 'the worst of all sinners' and laments about the fact that he often does what he doesn't wish to, and doesn't do things he knows he should. So it sounds like you're in good company at least.
Do try to remember that you've been forgiven. And that God loves you and is merciful. God's mercy and love is a gift, not something we deserve or earn by being sufficiently sorrowful - or sufficiently good. Because we can never be sufficiently sorrowful to earn his mercy, nor sufficiently good to earn His love.
If you inherited a million dollars from some long-lost relative, would you waste a second lamenting about the fact that you didn't deserve it? Or would you simply say 'thankyou God' and try to put that money to some good use? Focus on doing the same with the gifts such as mercy and love that God gives you.