katie
i think you are one of the most responsible people i know. i think that if your dad is willing to help and you have a backup plan then go for it. after you research on it a bit if it seems like it would be a fit idea then go for it girl. you know what your doing. your not stupid.
owning a home for anyone is a hard thing to do. just because your young, just because you dont have a million dollar paying job doesnt mean you CANT do it.
go to realtors.com and look around. even craigslist and the newspaper have home listings
maybe even you can find a place rent to own? that wuld be a great option.
also sometimes apartments can be just as/if not MORE expensive than a house. i know most of the places around here (suplex's and condos) are even LESS than most apartments.
definatley look into it some and continue taking all of the POSITIVE ADVICE that people give
like i said your a smart girl. good luck babe