Hi there,
What I have always recommended for toddlers who need a parent to sit by them.. it to use a chair, and move it back one foot each night. Yes it does take time, but it decreases the anxiety that both you and your toddler feels. Give it two weeks.
While you sit in the chair, there's not interaction or talking. If she gets out, then put her back into bed.
Do you have Tracy's toddler book, or her new book? She deals with toddler sleep issues in both.
Hope this helps,