My sister saw a guy running along the beach with the word "sinner" plastered across his chest. On his back were the words "saved by grace." Michael Pearl wore a shirt once that said "I am the righteousness of God." One woman almost spit in his face and asked him how he dared to wear a shirt like that.
What kind of a Christian are you? God calls you a saint once you believe in Him. He says you are the righteousness of God. He calls you His child. He tells you that you can do all things through Christ who strengthens you.
Once you become saved, He tells you that you are freed from sin and dead to sin. The question is do you believe it? We are transformed by the renewing of our mind with the Truth. If you continue to believe you are a sinner that struggles daily with sin, you will act like a sinner that struggles daily with sin.
If you believe who God says you are, you will act like a saint who can do all things through Christ who strengthens you. Our faith is built upon believing. God tells us to believe Him and as we believe Him and take Him for His Word, He works a miracle in our life.
Our old man is dead, buried, and gone. When Jesus died on the cross, every sin of yours was nailed to that tree with Him and destroyed by His death. As He was risen, so you too, were risen to a new life. Start believing God. Start believing you are a new creature in Christ who has been freed from the power of sin.
Study and meditate on Romans 6 and 8 and all of Ephesians and Colossians. Who we are in Christ is said over and over again in these chapters and books of the Bible. Now, just start believing it. Start renewing your mind with God's truth and living in the freedom that He died to give you.
Now you are free to fully love your husband and children. You are free to serve them with gladness. You are free to forgive those who have hurt you. You are free from trying to live up to the world's standards. Walk in that freedom! It is a wonderful place to walk.
I am crucified with Christ: nevertheless I live; yet not I, but Christ lives in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.