Sorry it’s not clearer! From that image It looks like you’re currently editing an existing project. You need to back out to the Space then use the + sign to creates a new project:
But if this is somebody else’s Space, you won’t be able to create your own projects unless they make you a staff member. So, you may need to talk to the person who owns the Space.
Get back to us if you have any questions or anything is not clear, ok?
All the best,