My mother maxed out all her cards

Help, my head is about to burst from stress and overthinking. My mother maxed out three of her credit cards by buying a lot of things from jewerly to house decorations. She said when she dies she will be debt free so she’s buying everything to leave something in the house. As a kid who hasn’t yet graduated from college, I’m planning to work all part time jobs I could think of because I’m still sane and wouldn’t let my mother off herself from the debts she can’t pay. I tried stopping from buying all those things and the debt was too much for me. I don’t know how the bank would get their money back especially the lending apps. All she had as a security is her death. I don’t know why she’s doing this, I’m miserable as it is and it’s already a nightmare trying to find multiple jobs as someone who doesn’t have work experiences.

Any advices would be appreciated but please be nice I’m on the brink of going off before my mother does.