I feel you, man. I've written something similar in my journal. I don't know if "something to click" really exists, I think we fight this second by second, living in the moment and trying to disrupt the repetitive nature of this habit. We need to do things differently and break those patterns. How do you relapse? What's the repetitive thing in your way of relapsing and what can you do about it? It could be a thought pattern. In many cases a relapse starts in the mind long before it actually happens and it could be repetitive, starting the same thought pattern that leads to relapsing.
I've found (and continue to find) that it's a series of 'clicks' or 'aha moments' that motivate us, and help us to navigate this thing. This is why reading up on different approaches is so paramount, because you just might find that key that will fuel your current efforts.
And you're right about finding that repetitive behavior that is part of one's ritual, disrupting that consistently, as a way of breaking up the habitual patterns.