How about helping her to increase her self worth? What I understand is ..She doesn't work.How about making her stand on her own feet financially,rather than just giving her money.What happens when your mom's finances are depleted. She will become dependant on you. Yes,we love our family too much.But there should be a threshold. She is crossing the boundary.You need to define your boundaries with your family.For your own sanity you need to resist unfair manipulation from your own family members.All the best.