I'll start with the obvious...that's a huge tank...she's probably feeling a bit insecure...personally I'd take all that stuff and toss it in a dumpster... But that's probably not what you want to hear, so to get her started, I'd put that in your closet, pick up a small rubbermaid/sterilite tub and keep her in that for now. Put it somewhere dark and quiet. Give her a tight fitting hide and a small water bowl. Leave her alone for a couple day and then try feeding again with a live rat pup or mouse...

and slightly off topic, but your user name creeps me out...