How do I convince my mom to get me a suger glider?

She has thought about getting me lots of different pets, but always makes some excuse not to. The hermit was they stink and when i took her to some and they didnt stink it was they die fast. The turtle was there hard to care for. The ferret was they stink, the hedgehog was there poky(however you spell it), the suger glider, the first time, was im not responsible enough now its "Im not buying the food for it."