Hair hasn't grown in over 5 years

in Growing out
I've had longer hair in the past when I was younger and I cut my hair to chin length about 9 years ago and have only had trims since. I keep looking back at photos from years ago and my hair is the same length yet all of my friends have had their hair grow well past mine in 2 years even though they had much shorter hair.
I have red hair so I never dye it and every hair stylist I have seen says it's very healthy hair. My hair is dry so I only wash and style it about 2 times per week. I don't use shampoo with sulfates and I now do coconut oil treatment at least twice per month. I do use heat to style but again, only about twice per week and my hair is healthy. And I know heat is the worst thing you can do but going to work with natural hair is not an option for me. I use protectant and high quality tools. I've tried biotin for over a year but gave up. I eat super healthy everyday and lots of drink water and weight lift and do cardio. I just don't know what else to do and it kills me that my friends who dye and bleach their hair have hair that grows like crazy. The other thing is that my nails grow much faster than most people and I couldn't even keep up with acrylics because I needed a fill after about 4 days.
I have red hair so I never dye it and every hair stylist I have seen says it's very healthy hair. My hair is dry so I only wash and style it about 2 times per week. I don't use shampoo with sulfates and I now do coconut oil treatment at least twice per month. I do use heat to style but again, only about twice per week and my hair is healthy. And I know heat is the worst thing you can do but going to work with natural hair is not an option for me. I use protectant and high quality tools. I've tried biotin for over a year but gave up. I eat super healthy everyday and lots of drink water and weight lift and do cardio. I just don't know what else to do and it kills me that my friends who dye and bleach their hair have hair that grows like crazy. The other thing is that my nails grow much faster than most people and I couldn't even keep up with acrylics because I needed a fill after about 4 days.
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Comments
The fact that your nails grow fast indicates your problem is unlikely to be a vitamin or mineral deficiency.
Aside from that, it is possible that your hair has a short growth period. Let's say that person X has hair follicles that are in the growing phase for 6 years before resting and eventually falling out; that's about 36 inches of growth (from scalp to ends). let's imagine that your hair has a significantly shorter growth cycle, say 3 years, and each hair strand only grows 18 inches from the the scalp before being falling out. This would explain why your hair is growing but looks about the same length. I hope that makes sense. Let me know if it doesn't.
How long is your hair now? I do agree with the post above that you may have reached terminal length (unless it's still at chin level--then that's too short not to grow). Some people can grow their hair extremely long, whilst others cannot.
Anyway, back to rice water: The Yao women of China wash their hair with it, and their hair grows quite long. Google it to see pictures; it's quite something. So maybe this can help you as well.
3A/f/i
Super baby fine hair, low porosity
Shampoos: SM Fruit Fusion (mostly), Avalon lemon (to clarify). Occasional aloe vera and glycerin to wash.
Stylers: Intelligent Nutrients Perfect Hold Hairspray
Treatments: Catnip tea, IA girl's PT, Fermented Rice Water, Catnip Tea, Amla tea, Irish Moss, SS PT
Last Relaxer: 2/11/2012
Latest BC: 11/24/2018