Working on a free, effective JS course and looking for some early testers.

I'm obsessed with learning psychology, so I'm working on a course that's more effective than any others out there. The current version is here: https://laudis-i69fn2bof-jsco.vercel.app/app/course

If any indiehackers want to test I'd be super grateful about feedback.
Alternatively, I'm not sure if there are good paid services where I can get users to deliver detailed feedback and even record their sessions using my course. I want to validate the concept and difficulty level first before I make a "true mvp"