(while Hebrews 6 and 10 did do a number on me in times past. God worked it out for the good though; I came back stronger.)
The devil has ruined millions of believers with "if we sin willfully" and "you have trod underfoot the blood" "you have crucified Christ afresh". and "there remains now no more sacrifice" ...
So, im glad you are recovered from that issue, and its a shame you went through it.
I could have helped you, but i didnt know you at that time.
I have much much personal experience with people who have been lost in the book of Hebrews.
Most Believers just dont understand that the Bible is so powerful, It can divide your soul from your Spirit.
It can rip your (mental) head OFF.
Its not a Toy.
The devil uses the bible to destroy people., born again people.