EDIT: Okay guys thank you for your comments I have an update!!

I am no longer working for her as I just got a new client. Had my interview with her today and it went well and I'm starting tomorrow so I'll be sending the other woman a message and letting her know I won't be working for her anymore

Okay no judgment please. For context, she's a single mom and she is really poor and so sometimes she'd pay me late which I didn't mind cause I understood she needed to focus on bills and groceries. But it's been like 2 months now and she hasn't paid me. She said she'd pay me the weekend of Thanksgiving but never did and then when I met up with her again she mentioned she had another car payment so I didn't wanna say anything about the missing payments. She owes me up to 1000 dollars by now. I feel bad saying anything cause like, she's clearly struggling but I'm also kinda upset cause the money I get from babysitting is for groceries. Luckily I have another family I sit for that pays me on time so it's not like I can't pay for groceries right now but after this coming week that family won't need me for 2 weeks, which means I won't be getting income for 2 weeks. I don't know how to approach this without sounding rude😔