Unlike the Old Testament, the New had a ‘once for all’ sacrifice of blood. Thus we have One Priest, although we also have a universal priesthood offering a sacrifice of thanksgiving and good deeds, and Paul speaks of his ministry as an offering to God.
That is part of how the New improves over the Old - ONE SACRIFICE, offered ONCE FOR ALL. That Jesus does not continue to offer his blood, and that no other offering atones for sin, are both clearly taught. “Nor was it to offer himself repeatedly, as the high priest enters the holy places every year with blood not his own, for then he would have had to suffer repeatedly since the foundation of the world.”
Contrast with the Old, not imitation of it.
The old is a foreshadowing of the far superior of the new. The old is the imitation, not the new. ((which is symbolic for the present age))