How Can I Grow My Hair Out Faster?

I fried my hair with color and bleach. It was damaged beyond repair so I just decided to cut it off and start over. I figured, “Hey it’s just hair. It’ll grow back.” Little did I know that a year later my hair would only grow 5 pitiful inches. I’ve tried everything:
Castor oil
Massaging my scalp
Prenatal vitamins
Hair, Skin & Nail vitamins
I’ve tried Mane N Tail Shampoo
And I only use a flat iron maybe once every two weeks to check for growth progress, as my hair is very curly making it extremely difficult to notice a difference. 
I’ve literally tried everything I can think of with no noticeable results. I’m realistic. Like I know there’s no products/methods that’ll make my hair grow two inches in two weeks. But does anyone know of anything that might help speed the process up a little? The average person’s hair grows approximately a half an inch per month. Like I said, it’s been almost a year and my hair’s only grown 5. I’m losing hope!
Btw, I recently purchased the Nisim F.A.S.T. shampoo and conditioner from amazon but I haven’t been using it long enough to notice any real growth. Just looking for more ideas in case the F.A.S.T. doesn’t work.
Thanks!