I don't like this at all. First, you can improve your performance, you should regret not studying enough, or not concentrating enough during the test. If you w

I don't like this at all. First, you can improve your performance, you should regret not studying enough, or not concentrating enough during the test. If you want to regret something, regret your decisions. If you can't regret your decisions because there is nothing to regret, you probably should feel no regret instead, than doing cheap tricks. Of course if you are unable to not feel any regret, then “stick with your first instinct” can be a good cheap trick.