ANSWER: We have all lost our lives to Satan, which is why Jesus had to come and literally buy us back or redeem us from sin (Galatians 3:13). Christ specifically bought us back from the devil. God, through Christ, owns us now and not the devil.
God does not limit himself in regard to how much disobedience he will forgive IF someone is willing to repent. In fact, Jesus stated to Peter that we should forgive others as many times as is needed (Matthew 18:22)! In Matthew 12 Jesus taught that EVERY sin and blasphemy will be forgiven by God (Matthew 12:31 - 32). The only exception he made is what is commonly referred to as the unpardonable sin. This type of disobediance in not forgiven because a person WILLFULLY (and not out of weakness or deception which we can all fall prey to) REFUSES to ask for a pardon!
Our heavenly Father wants to save everyone (1Timothy 2:4) and therefore is quick to forgive sin. The only question is how much pain do we want to go through before we decide to believe him and not the devil. In Hebrews 12 Paul says God, as a loving Father, corrects every person He works with and considers one of his spiritual children.
5. And you have already forgotten the admonition that He addresses to you as to sons: "My son, do not despise the chastening of the Lord, nor grow weary of being reproved by Him; 6. For whom the Lord loves He chastens, and He severely disciplines every son whom He receives" (Hebrews 12:5 - 6)
Satan's will is to have you think how bad you are and to believe the Eternal does not love you. No matter how sin you perform God ALWAYS loves you and will allow you to go through as much suffering as is necessary to finally believe Him and not His adversary. He wants us to repent (Acts 2:38), which means to change our mind from seeking the will of the devil (e.g. which is to NOT forgive yourself after you have been forgiven) to His will.
Jesus, in his Sermon on the Mount, stated that if we ask the Father for something (according to His perfect love and will) He will give it to us.
'Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you . . .' (Matthew 7:7 - 8)
It is God's will that we ask for forgiveness. Although He knows we are weak and sometimes give in to the temptations and deceptions of sin, He promises to ALWAYS forgive is we ask. And he also promises to eventually remove all traces of rebellion within us (1John 1:9).
When you pray, ask Him to help you believe Him and accept His forgiveness no matter how bad you think any sin is. Belief (faith) in God can lead you to repentance.