Wow! Sounds like she is expressing anger at you for constraining her for the two months. That is most probably what the behavior is from.
So, you need to help her "feel good" about your hands now. The best advice I can think of is the TREAT advice. Find a treat she loves. Do not serve in the cage. Give it to her from the hand that picks her up. Praise her gloriously!!! You may want to give her a treat with your hand before picking her up. That does two things. It keeps the beak busy, which means it can't bite. Also, it will help her associate positive things with that hand.
Please let me know how this strategy works,
Maggie-