Lol. One thing about drinking anyway is you will still at some point get sober, come back to face the reality and still enter that world of regret if you still want to, and then, you are back to square one.

However, I have always have this mindset that regret would not change a thing as we cannot change the past but can only amend the future by learning from the things we did wrongly and that is what makes us better. At least, that will even give you an edge over others that are just starting to gain the experience afresh.