Needing help creating custom items/toolset in 1.19.4

I’ve been trying to create custom items in 1.19.4, following the only tutorial I can find, as well as the docs found on the website and both seem to be outdated. Could someone please tell me how to make an item in 1.19.4?
My code and folder paths:


Errors:
image
Thanks ヾ(^▽^*)))