Douglas, burn the box.
From everything I've read and heard from others who have been through this process, a "Likely to Pass" is exactly what it says. I haven't found a single credible account of that flipping to a fail and I looked. CLARB uses that language deliberately, and they wouldn't put it on the screen if it wasn't reliable.
I completely understand the anxiety after everything we've put into this; it feels almost too good to be true. But at some point, you have to trust the process and let yourself feel it.
You're done. The worn-out study guides, the practice tests, and the whole beat-up box served their purpose. Honor them by getting rid of them and never looking back.
Congratulations Douglas. It's been a long road for both of us. Enjoy every second of this.