Is there a way to go back to a configuration of a few days ago? My cousin has been messing around with my computer and I want to put it all back the way it was. (I have never used the time machine on this computer so I don't think that will help)
You are essentially asking if you can restore your computer from a backup when you've never backed up your computer. The answer is obviously "no."
What he's asking is if the Mac has the same option a Windows PC has which allows the users to revert back to configuration changes made previously to the system.
Sometimes handy if a faulty driver or application is installed, this can be done without a backup but from a System Restore Point.
Unfortunately MAC's do not have this functionality.