How to grow my hair long?

I suffered from the same thing but from Trichotillomania. I'm fine now though my hair is full and beautiful. Washing your hair everyday will thin it out and damage it. Wash it once a week I use tresemme anti breakage shampoo and herbal essence full body conditioner then Paul mitchell hair serum try that and after sometime it will come back in full and have lots of body. If you flat iron your hair or blow dry it, to it at night so that when you sleep it recovers from heat. Sleep heals your body more than anything and it's good for your hair. I used biotin tried eating healthy...it might have made a difference but I never saw it. Using the hair products I mentioned helped me & now I have my mom on it because she is getting old and her hair was thinning up. try it & good luck:)