Growing back fried hair?

Nicole
On new years I had a friend help me bleach my hair out. I guess she didn't pay attention to the fact that it fried my hair in half. I really dont want to cut my hair, its halfway down my back. But a layer in the middle of my hair is probably about half the length. Anyone know of good, fast, reliable ways to get my hair to grow back out long and healthy? I already take Biotin and Folic Acid. Cutting my hair is not an option. Thanks!