Are you speaking of the statement from Matthew 5:17?
If so, that is not "fulfilled" in the sense that some like to believe, ("abolished"), but rather to fully or completely fill something up: to literally cram something full, (like a fishing net "stuffed" full of fish), to level up something that is not quite full or in a somewhat hollow state, to fully supply, to satisfy, execute, (a duty or an office), to verify, (or coincide with a prediction), to confirm, to accomplish, to complete or make complete, to fill up, (and it is in that sense to "fully fill" or "fulfill"), to make full, even to fully preach, or to perfect something, to fully furnish or supply.
That certainly does not mean "abolish" in any sense of the word. Nope, and rather instead, the Torah is fully expounded by the Testimony of the Master found in the Gospel accounts, (and the Apocalypse), or at least everything we need to know to understand how to walk the Torah in the Spirit of the Testimony of the Master, (which is opposed to "the works of the law", (an idiomatic term used by Paul to describe the old-time carnal and physical minded interpretations of the Torah)).
One may indeed walk all of the Torah by the supernal understanding that every disciple of the Master is the true temple of Elohim. If you have Meshiah then you have what you need to offer up every ascending offering mentioned in the Torah, (not "burnt offerings" but "ascending offerings", (which concern prayer as opposed to literally physically slaying the innocent living creatures of Elohim and draining their blood)). It all comes down to your interpretation of the Torah, (and your understanding of the Prophets and Writings with respect to the Torah and the Testimony of the Master), and the Master "fills up" the understanding of all necessary things for his disciples in the Gospel accounts, (and the Apocalypse).