parallel parking in a truck for my drivers test?

[SarahWhite]

i have my drivers test in a couple months and we have to use our own cars and the only car im aloud to use at home is my dads truck. and im fine driving in his truck but there making us do parallel parking and it physically impossible to do it in my dads car and iver been practing and practing and i still cant do it. do u guys have any other ideas, i cant rent a car because i dont have a drivers license yet but what should i do?