Split Tests I Need To Run (but haven't)

Split testing Digital Products is great, because you can spend as much as you want and won't get overwhelmed with fulfilment... Unfortunately I started with Physical Products and a "fulfilment limit" so I have bad habits. These are what tests I should be running but am not (will run once I get back from gym!)

Preview

1. Course Title

2. Page Layout

3. Button Corners

4. Main Text

Does ChatGPT write better copy than me? Even with an "expert copywriter" prompt??

5. Course Image

6. Course Trailer

7. Embedding video or YouTube link

8. Reviews displayed

9. Ad copy mirror

If it works on Facebook, surely it would work on the website!?

10. Preview The Course

I know this one will be a redirect, but because I haven't done them before I'm expecting that I'll mess up and therefore procrastinating