Romans 6:14
For sin shall not have dominion over you: for ye are not under the law, but under grace.
[h=3]Galatians 3:23-25[/h]King James Version (KJV)
23 But before faith came, we were kept under the law, shut up unto the faith which should afterwards be revealed.
24 Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
25 But after that faith is come, we are no longer under a schoolmaster.
Heb. 10:16 This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them;
You seem to be basing everything on the laws God gave to Isreal. After Christ we are under grace, not the law. There are specific things in the New Testament we are told are sin. As for the rest, if you are a true, born again child of God the Holy Spirit will guide you.