You musta missed this scripture:
By him therefore let us offer the sacrifice of praise to God continually, that is, the fruit of our lips giving thanks to his name. But to do good and to communicate forget not: for with such sacrifices God is well pleased. (Hebrews 13:15-16 KJV)
I'm glad you referenced Hebrews because there's no book of Scripture which more clearly explains how the old has given way to the new.
To offer prayers as a form of "sacrifice" is consistent with giving our time and energy to God in prayer. But it is in no way a "sacrifice" of food or dietary restriction or ceremony or holidays.
And that's the "sacrifice" of this discussion.