If you want to be a curator, just ask.
You can add any projects expect those low-effort things with barely any code in them
(Example: https://scratch.mit.edu/projects/317920479/ )
Curators can delete those projects freely.
Also, I can help you with your projects if you wish :)
To be a manager you must be a curator, follow @NoelGamer06 and this studio, and then just ask in comments.