How did Anupama become so over confidence

The women who used to have low self esteem and who used to have low confidence en up becoming over confidence. She still thinks she is right . She always interrupt in every decision .she thinks she is bigg Boss and who can control and stop people ??

This happened when the protagonist/s changed from Anupamaa (Sreemoyee) to Rajan and Deepa Vanraj and Leela.

Credit goes to Simp Kabadia. He incessantly praised her "non existent" talent which made Maa think she is besht in the universe.