I'm so your family is being so inconsiderate just because you sister's influence. I wish I had words of wisdom. I'm not sure what I would do in your place, but I wanted you to know that someone listened and cared. Best wishes to you. Hope your mom at least sees that you get your vehicle back.
__________________
Bipolar I, Depression, GAD Meds: Zoloft, Zyprexa, Ritalin
"Each morning we are born again. What we do today is what matters most." -Buddha