Creating a hook with spline

How would I go about this? I created a base, spline and tried to use the feature…

Like so…

Hi- If you look at the error message on the top you’ll see that with this spine you would create a self-intersecting body, which is not possible.

Please adjust your spine and you will be able to create the hook. Attaching a couple of pics to help differentiate


valid body:

Also, this video shows you how to do a hook:

Thank you! A bit confused on the difference. Will watch the video