The 34-year-old "Fantastic Four" star, who made her foray into acting a the age of 18, says she was driven to become successful because of people, who did not have confidence on her, reported Female First.
"People doubted me as an actress and that's something that drove me. I was not going to be pegged as an action-comic-book fangirl," Alba said.
The actress also started her own billion-dollar company, Honest, which sells eco-friendly products, says the her business helped her overcome the insecurities she had about her acting career.