|"i dont know whether mine was and im really worried now that if it was can someone hack my computer or find out where i live?"|
They don't have to hack your computer to do that. You ISP makes your address public knowledge.
There is no privacy on the internet so be careful of what you do.
"my parents computer and they use it for work"
Is the computer your parent's computer or does it belong to the company they work for? If the later you may want to read the exceptable use policy the company may have for that computer.