This is my hair today, last washed on Monday 
I try to only wash it twice a week because it’s also very long, coarse and frizzy. The ends get horribly dry
I do not have fine hair!!
I know the most popular suggestion is to “wash your hair less” etc because washing strips your natural oils and causes more oil.
I’ve read that in plenty of online articles but can’t seem to find any hard evidence backing this?
Also, I have pcos so I presume it could be linked to that
I don’t put conditioner in the roots either. Don’t use extremely hot water and rarely use heat on my hair (again don’t know the truth in this but from googling some people claim heat can stimulate sebum)
I feel like Roaccutane may be the only viable solution, but I already have eczema 😩