finance money management

Hello & Help. My Cousin is Autistic. She is 41 years old & has multiple health issues. She cannot handle her finances. She has no one else in the family who can help & advise her. I live 35miles away. How can I approach this delicate subject without it ending up in a disagreement or worse, a row. She has accumulated debts running into £2500+. She still spends money on things that she could live without. She finds financial budgeting difficult. She says she wants to be Debt free but makes very little effort to achieve this. Any advice would be welcome