"8But we know that the law is good, if a man use it lawfully; 9Knowing this, that the law is not made for a righteous man, but for the lawless and disobedient, for the ungodly and for sinners." (1 Timothy 1: 8-9)
The law is not for righteous people.
Righteousness does not come from the law, but by faith:
"For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith." (Romans 1: 17)
"But if ye be led of the Spirit, ye are not under the law." (Galatians 5: 18)
Paul explains why the Jews of his day did not receive this gift of righteousness, compared to the Gentiles:
"30What shall we say then? That the Gentiles, which followed not after righteousness, have attained to righteousness, even the righteousness which is of faith. 31But Israel, which followed after the law of righteousness, hath not attained to the law of righteousness. 32Wherefore? Because they sought it not by faith, but as it were by the works of the law. For they stumbled at that stumblingstone;" (Romans 9: 30-32)
The law is not of faith:
And the law is not of faith: but, The man that doeth them shall live in them." (Galatians 3: 12)
How do righteous people live, then? By grace!
"13Neither yield ye your members as instruments of unrighteousness unto sin: but yield yourselves unto God, as those that are alive from the dead, and your members as instruments of righteousness unto God. 14For sin shall not have dominion over you: for ye are not under the law, but under grace." (Romans 6: 13-14)
The law is not for us to live by, but rather the law shows us how dead we are, and in need for life.
Once we have been delivered from sin and death to grace and life, we are no longer under law:
"23But before faith came, we were kept under the law, shut up unto the faith which should afterwards be revealed. 24Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith. 25But after that faith is come, we are no longer under a schoolmaster." (Galatians 3: 23-25)
Because we have been the righteousness of God in Christ Jesus (2 Corinthians 5: 21), stop trying to live under law, for the law is not for righteous people.