That is okay. It happens brother, have had the same experience myself not with customers, but with co-workers in my life. It's unfortunate and people will judge you based on what you did. However this should prove to be helpful : Remember that sometimes we do have anger that can become an outburst of anger especially when we feel like we are under pressure from someone else, or we dislike someone in how they are being towards us. We can be angry; but we shouldn't have outburst on other people. Anger is does not bring forth the righteousness of God.
God has already forgiven you of your mistake, he understands it was a mistake. Surely you feel a lot of guilt, and possibly shame -> God has allowed me to know when wrong has been done and it is not a fun experience to go through.
My encouragement for you is to go boldly before the throne of God, so that you will find mercy in times when you need help; like now asking for prayer. Ask God to help you in your life with these situations that are occur also pray for all of the people in your life and how thankful you are for them.
Accept God's forgiveness friend, you are not alone when it comes to these things. We are forgiven of our mistakes because of what the Lord Jesus Christ has done on the cross for all of mankind. The same spirit that God raised Jesus Christ up from the dead with, lives inside of you! The holy spirit/spirit of Christ, introduce us into a new way of living when we are renewed in our mind and hear what the word of God has to say, and we live by the spirit rather than the flesh.
The spirit will produce in you more and more, as you go to God, producing this type of fruit: Love, Kindness, Gentleness, Patience, Long-suffering, Self-Control.
Listen, it is understandable friend, and remember you are not alone. Remember who you are in Christ Jesus, a son of God, who has been made right by faith (trust/confidence) in them, you are loved, you are forgiven, and if anyone ask you about the experience that happened. Let them know the truth, you were wrong in that situation, that was not what God would have had me to do for anger doesn't bring forth the righteousness of God. I was wrong and was living in my flesh that had got bound up in it's own desires, where the spirit of God would have helped me have patience.
It's tough out here in this world sir, God bless you and hope this helps you in your faith and encourages you to stay strong towards God friend! Take care, stillgods.
