First of all, no, you're not wrong to ask God for His forgiveness.
Those who wish to follow Christ want very much to please Him and the Heavenly Father. We read, "This is love for God: to obey his commands…" (I John 5:3) and "Just as he who called you is holy, so be holy in all you do." (I Peter 1:16) Trying to be holy but being unable to overcome sin can be very discouraging. And then there is I John 3:6: "No one who lives in him keeps on sinning. No one who continues to sin has either seen him or known him." This scripture might make us question our relationship with the Lord.
But look at some scriptures that the Apostle John wrote earlier in this epistle. "If we claim to be without sin, we deceive ourselves and the truth is not in us. If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness. If we claim we have not sinned, we make him out to be a liar and his word has no place in our lives." (I John 1:8-10) Also, "My dear children, I wrote this to you so that you will not sin. But if anybody does sin, we have one who speaks in our defense – Jesus Christ, the Righteous One." (I John 2:1) The Apostle John confirms that we sin and that we need Jesus to stand by us when we go to the Father in prayer. Back to I John 3:6, the Amplified Bible says, "No one who abides in Him – who lives and remains in communion with and in obedience to Him,