I Hate My Hair

I have barely ever done anything to my hair and have done my best to protect it yet I have hair that is experiencing a lot of loss and thinning. I was just told the other day that my hair is too fragile to dye even though I haven't bleached my hair heavily already. :/ I have naturally oily hair and I at least want to be able to change the colour. I have been suggested by a hair stylist to cut a lot of my hair off (even though I have almost always had short hair and finally have some length again) and also to see a doctor to find out why my hair might be so unhealthy as it could be linked to worse issues.

I know there is not much I can do about it but I just need to rant. :/ I haven't got much I like about myself so really being able to at least do something nice with my hair was the least I wanted.