Yes there is a system restore and it's called a system back-up but if you didn't make one before you started, you obviously don't have one...
So the easiest to do for you now, is to boot from a LiveCD (the CD you installed it with) and choose "try Ubuntu". Then make a full file back-up, (get your file data off the machine onto another medium) and re-install...
Afterwards, to auto-mount your drives, have a look here: How to automount NTFS partitions? instead (it works for any file system)
There is also the hard way of repairing this and that is to look for any changes in the
fstab and figuring out what changed. As you have no point of reference (do you have a back-up of
fstab?) this is going to be difficult for you, so I would advise against it.
Note: look at Ask Ubuntu first; you're not the first one that bricks his system from reading from this guy's blog. (NVidia drivers that make your system crash, easily auto-mount drives, ... )