The power of God is in the gospel of Jesus-Christ.

For I am not ashamed of the gospel of Christ, for it is the power of God unto salvation to everyone who believes (Rom 1:16a)

For the preaching of the cross is foolishness to those being lost, but to us being saved, it is the power of God. (1Co 1:18)

On that cross Jesus took your sins away brother, it is done! How you feel does not change this truth for it is written:

Behold the Lamb of God who takes away the sin of the world! (Jea 1:29b)

He has appeared to put away sin by the sacrifice of Himself. (Héb 9:26b)

Dear borther, God showed His love towards you before you ever repented, for it is written:

But God commends His love toward us in that while we were yet sinners Christ died for us. (Rom 5:8)

He also tells you that he will continue to grant you repentance and victory, for it is written:

Truly He who did not spare His own Son, but delivered Him up for us all, how shall He not with Him also freely give us all things? (Rom 8:32)

Do you believe Him ? Trust him when he tells you:

If [you] confess [your] sins, [I am] faithful and just to forgive [you your] sins, and to cleanse [you] from all unrighteousness. (1Jn 1:9)

Trust him because He is willing to forgive you all your sins, for it is written:

My little children, I write these things to you so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous. And He is the propitiation concerning our sins, and not concerning ours only, but also concerning the sins of all the world.
(1Jn 2:1-2)

Brother, every day of your life until you die or Christ comes back God is calling you to:

Repent, and believe the gospel. (Mar 1:15b)

God's blood can cleanse your conscience from all your dead works, for it is written:

How much more shall the blood of Christ (who through the eternal Spirit offered Himself without spot to God) purge your conscience from dead works to serve the living God? (Héb 9:14)

And the Lord shall deliver me from every evil work and will preserve me to His heavenly kingdom, to whom be glory forever and ever. Amen. (2Tm 4:18)

Your faith in the gospel is what is being attack my friend. You have been reconciled to God through Jesus! This is true. Simply continue to trust Him to get you to the end. He can save you, for it is written:

Therefore He is able also to save to the uttermost those who come unto God by Him, since He ever lives to make intercession for them. (Héb 7:25)

Persevere in the hope of the gospel

And you, who were once alienated and enemies in your mind by wicked works, yet now He has reconciled in the body of His flesh through death, to present you holy and without blemish, and without charge in His sight, if indeed you continue in the faith grounded and settled, and are not moved away from the hope of the gospel, which you have heard and which was proclaimed in all the creation under Heaven, of which I, Paul, became a minister. (Col 1:21-23)

Keep yourself in the love of God

But you, beloved, building yourselves up in your most holy faith, praying in the Holy Spirit, keep yourselves in the love of God, eagerly awaiting the mercy of our Lord Jesus Christ to everlasting life. (Jud 1:20-21)

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Benjamin A.