I am stupid is a statement she is now starting to acknowledge as not true, but she still feels "not smart enough", which is just another version of the story.
Update: She has actually orally acknowledged that she is smart and in some things very smart.
READING RELATED TO "STUPID" TAPE
Dealing With My "Stupid" Tape - This is a worksheet where one works through what else is said and meant by being stupid, and what it leads to and where it came from. Realizing how it impacts relationships is also a key. Followed by an action plan. A good format for other beliefs about yourself.