Using Final Cut Pro and really just want to create, edit and share movie to another directory....then delete all libraries or any reference to movie in final cut pro....as if it was a new clean version. I normally share the movie, upload it to another drive or you tube, facebook etc then want to delete everything off my hard drive and have the same amount of space I had before. I have deleted the finished movie, deleted the project and events from Final cut, deleted back up files etc in my Movies / Final Cut directories but still seems to be eating my hard drive space? I don't want to share directly to an external drive etc. Is there anyway I can clean this all up.

Once upon a time you could access Mac libraries but some upgrades ago this now seems impossible.
Any help appreciated.