What does this have to do with you keeping everything you are supposed to keep? Even the pharisees could obey Gods commands. What good did it do them?
We as Christians trust the Lord Jesus Christ, and then we are born-again into a new person in Christ, then we are guided by the Holy Spirit to do the works that Jesus before ordained that we should walk in them. This is another way of saying, keeping the commandments of Jesus (whether you like the words "keep his commandments" or not).