Wow, Kell, that's a tough one. Did she come right out and ask you for these favors or is she just hinting? Maybe she just needs a sounding board?
My advise is....if you want to get her off your back, is, to take her call and then give her all the Motherly advise you can give......Like, PAY your bills and keep fixing the old car, it's better than a car pmt..... She will run like the wind..