As bad as things may look, there certainly must be something to be grateful to GOD for. If you focus on the situation at hand, you are only giving more room to be anxious which will automatically affect the rest of your day(s). So if you ask me, I would say, you should not focus on the things you do not want or the mistakes that happened. Focus on the positive things in your life! And trust me, you should be happy for the mistakes, because "you just got wiser!'