Nobody can make the decision to stick with it but you and the power to do so lies within You....if your head is not in the right place, then walk away from it for a while and come back when failure us not an option....
I know when my head is not in it the only thing I'm doing is setting myself up for disappointment! Try something less stern to begin with and work up to SS see how you go on 810 or even 1000 first.