The Bible says both that the Torah is truth and that Jesus is the truth, so they are both the same truth. God's word is not any more or less true than God's word made flesh, but rather he is the embodiment of God's word expressed through living in sinless obedience to the Torah. So he embodied what the Torah teaches and what the Torah teaches testifies about him. The same God who gave the Torah to Moses also sent Jesus to show us how to obey it, so there is no disagreement. In order to correctly obey the command to love our neighbor as ourselves we need to know how we should love ourselves and the answer to that is that we should love ourselves as Jesus loves us, so that is also how we should love our neighbor, which again means that he is the embodiment of that command.
Loving our neighbor as Jesus loves us is not doing something other than obeying the command to love our neighbor as ourselves. Furthermore, in Matthew 22:36-40, Jesus summarized the Torah as being about how to love God and our neighbor, so the way that he loved his neighbor was through his obedience to the Torah, which is also the way that we are to love our neighbor. If Jesus had been doing something other than living in sinless obedience to the Torah, then the Torah would not have testified about him.