Alhamdulillah 'ala kulli hal. I finally finished this course. The key was "TO NEVER GIVE UP NO MATTER WHAT" and lots of prayers to Allah for guidance.
But I ended up trying and trying to apply Variable Rule to my web app...
... until I eventually get it!!! Hooray!
Almost ditched this idea for good
And here is the certificate!!!
Here's the link to a video that demonstrates my final project in brief: Watch Video