Agony!

I'm feeling down at the moment because I re-offended the Lord. What a poor poor sinner I am.. The worst thing is that the Lord kept on reminding me before I committed a sin but I did it anyway! I just feel horrible because I broke my promise to Jesus..I really want to change and I don't want to keep on offending such a good God. I'm sorry Lord. I humbly ask Thee to forgive me, a poor and weak sinner.