Niche – HR

Hi there – I am in coach training and working on my niche. I know that I want to coach mothers with teenage daughters who are actively abusing drugs and alcohol. First, Is that narrow enough?
Second, I am not sure if I should say I will help them rebuild the relationship with their daughter that the drug and alcohol abuse has destroyed whether their daughter is sober or not, or that I will help them overcome the shame and anger of their daughter’s addiction and regain control of their life (their own life, not their daughter’s). I have solved both of these problems for myself and I think both will be appealing, but wondering if one sounds more appealing. Thank you!