"I never was" vs. "I was never"

What is the difference between "I never was" and "I was never"? It seems that there is a subtle difference, but I can't quite grasp it. Is one of them informal?

For example:

• I never was a good cook.
• I was never a good cook.

I never was a good cook.

Possible context: Lisa's mother-in-law has pressured her to prepare Thanksgiving dinner for the extended family. Lisa has reluctantly agreed. She made an honest try but made a key mistake and the turkey was a failure. "Well, you know, I never was a good cook."

I was never a good cook.

Possible context: Margaret, in her eighties and living in a nursing home, is being interviewed by a gerontology student. She confides to the student, "I was never a good cook."