The Day of Judgment

There are a lot of loaves, what ifs that are quoted in the context of the day of judgement when you look through the Quran. When they're finally about to enter, may Allah Subhanahu wa ta'ala. If I had another chance, Allah would see what I'm truly capable of, what I truly could have. But at that point it's too late. And so they're what if becomes a source of regret rather than a source of relief on the day of judgment.