The passages I quoted from Hebrews have nothing to do with going back to the Mosaic system. You read that into the texts. They refer to falling away from belief in Messiah Yeshua and thereby trampling on his blood. Are you going back to the Mosaic system as well by obeying the two greatest commandments as well as nine of the Ten Commandments? Neither am I. I live under the New Covenant with Torah written on my heart and mind.
Neither. I am one who is saved and who follows the leading of the Spirit as it causes me to keep YHWH's commandments (Ezekiel 36:26-27). I then try to teach others the same so they can come out of the tremendous deception Satan has perpetrated upon the church through his ministers of light.
They have everything to do with going back to the Mosaic System of Law. I didn't read that into the text. The whole book of Hebrews is about that. The very warnings you gave in Hebrews pertain to you. Ironic.
Trampling on the blood of Christ is going back to the Law which required continuous sacrifices. Christ is the end. He is the One and only and last sacrifice. Going back to the Law is going back to a continual offering of sacrifices.
If you are under the New Covenant then you are not under the Law. You can't have it both ways.
How did you get saved?
What deception of satan upon the church?
Stranger